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MCQ

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104 questions · 100 auto-graded MCQ + 4 self-marked written.

MCQ 11 Mark
Which among the following reagents is used to distinguish primary, secondary and tertiary amines according to solubility in alkaline medium ?
  • Benzenesulphonyl chloride
  • B
    Iodoform
  • C
    Ethylene glycol
  • D
    Acetyl chloride
Answer
Correct option: A.
Benzenesulphonyl chloride
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MCQ 21 Mark
Identify Hinsberg reagent from following.
  • A
    Benzyl chloride
  • Benzene sulphonyl chloride
  • C
    Benzene diazonium chloride
  • D
    Benzoyl chloride
Answer
Correct option: B.
Benzene sulphonyl chloride
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MCQ 31 Mark
Which among the following compounds is an amide?
  • A
    $CH _3 NO _2$
  • $CH _3 CONH _2$
  • C
    $CH _3 CN$
  • D
    $CH _3 NH _2$
Answer
Correct option: B.
$CH _3 CONH _2$
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MCQ 41 Mark
Identify the amine that does not form alcohol by the action of $NaNO _2$ and $HCl$.
  • A
    $\left( CH _3\right)_3- C - NH _2$
  • $\left( CH _3\right)_2- NH$
  • C
    Image
  • D
    $CH _3- CH _2- NH _2$
Answer
Correct option: B.
$\left( CH _3\right)_2- NH$
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MCQ 51 Mark
Identify the $x$ in the reaction. $R - NH _2+ HNO _2 \underset{273-278 K }{\stackrel{ NaNO _2+ HCl }{\longrightarrow}} x \stackrel{ H _2 O }{\longrightarrow} R - OH + N _2 \uparrow+ HCl$
  • A
    $R - NO _2$
  • B
    $R - NH - N = O$
  • C
    $R - NH - NO _2$
  • Image
Answer
Correct option: D.
Image
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MCQ 61 Mark
What is the IUPAC name of $\left( CH _3\right)_2- N - CH _3$ ?
  • A
    2, 2-Dimethylmethanamine
  • $N , N$-Dimethylmethanamine
  • C
    N-Methyldimethanamine
  • D
    Trimethylamine
Answer
Correct option: B.
$N , N$-Dimethylmethanamine
B
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MCQ 71 Mark
Which of the following conversions needs the reagent $Sn / HCl$ ?
  • A
    $R - C \equiv N \longrightarrow R - CH _2- NH _2$
  • B
    $R - CO - NH _2 \longrightarrow R - NH _2$
  • $R - NO _2 \longrightarrow R - NH _2+2 H _2 O$
  • D
    $R - CO - NH _2 \longrightarrow R - CH _2- NH _2$
Answer
Correct option: C.
$R - NO _2 \longrightarrow R - NH _2+2 H _2 O$
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MCQ 81 Mark
What is the number of primary amine molecules among the following compounds? 
Image
  • A
    3
  • 4
  • C
    1
  • D
    2
Answer
Correct option: B.
4
B
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MCQ 91 Mark
The correct structure of prop $-2- en -1-$ amine is
  • $H _2 C = CH - CH _2- NH _2$
  • B
    Image
  • C
    $CH _3- CH = CH - NH _2$
  • D
    Non of these
Answer
Correct option: A.
$H _2 C = CH - CH _2- NH _2$
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MCQ 111 Mark
The end product in Hofmann's exhaustive methylation of amines is Quaternary ammonium halide
  • Tertiary amine
  • B
    Primary amire
  • C
    Secondary amine
  • D
    non of these
Answer
Correct option: A.
Tertiary amine
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MCQ 121 Mark
What is the number of primary amines possible for the compound having molecular formula $C _4 H _{11} N$ ?
  • $4$
  • B
    $3$
  • C
    $1$
  • D
    $2$
Answer
Correct option: A.
$4$
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MCQ 141 Mark
What is the product formed when benzene diazonium chloride reacts with ethanol?
  • A
    Ethyl benzene
  • B
    Phenol
  • Benzene
  • D
    Benzyl alcohol
Answer
Correct option: C.
Benzene
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MCQ 151 Mark
Which among the following reactions represents carbylamine reaction?
  • A
    $R - NH _2+ CH _3 COCl \stackrel{\text { pyridine }}{\longrightarrow} R - NH - COCH _3+ HCl$
  • B
    $R - NH _2+3 R - X \longrightarrow R _4 N ^{+} \overline{ X }+2 HX$
  • $R - NH _2+ CHCl _3+3 KOH \underset{\text { alc }}{\stackrel{\Delta}{\longrightarrow}} R - NC +3 KCl +3 H _2 O$
  • D
    $R - NH _2+ HNO _2 \frac{\text { i) } NaNO _2+ HCl }{\text { ii) } H _2 O } R - OH + N _2 \uparrow+ HCl$
Answer
Correct option: C.
$R - NH _2+ CHCl _3+3 KOH \underset{\text { alc }}{\stackrel{\Delta}{\longrightarrow}} R - NC +3 KCl +3 H _2 O$
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MCQ 161 Mark
Which among the following molecules has lowest $p ^{ Kb }$ value ?
  • A
    $CH _3 CH _2 NH _2$
  • B
    $CH _3 NH _2$
  • $\left( CH _3 CH _2\right)_2 NH$
  • D
    $\left( CH _3 CH _2\right)_3 N$
Answer
Correct option: C.
$\left( CH _3 CH _2\right)_2 NH$
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MCQ 171 Mark
Identify the Gabriel phthalimide synthesis reaction from the reactants and reagents used in it from following.
  • A
    $R - C \equiv N +[ H ] \frac{ LiAlH _4}{\text { ether }}>$ product
  • B
    $R - CO - NH _2+ Br _2+4 NaOH _{(\text {aq. })} \stackrel{\Delta}{\longrightarrow}$ product
  • C
    $R - CO - NH _2+[ H ] \frac{ LiAlH _4}{\text { ether }}>$ product
  • Image
Answer
Correct option: D.
Image
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MCQ 181 Mark
Which among the following is a correct order of $p^{k b}$ values of amines?
  • A
    $R _3 N > R _2- NH > R - NH _2> NH _3$
  • B
    $R _2 NH > R _3 N > R - NH _2> NH _3$
  • $NH _3> R - NH _2> R _2 NH < R _3 N$
  • D
    $NH _3> R - NH _2> R _2- NH > R _3 N$
Answer
Correct option: C.
$NH _3> R - NH _2> R _2 NH < R _3 N$
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MCQ 191 Mark
How many moles of ethyl bromide is required for formation of 1 mole N,N-Diethylethanamin from ethyl amine?
  • A
    4
  • B
    3
  • C
    1
  • 2
Answer
Correct option: D.
2
D
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MCQ 201 Mark
Which one of the following compounds contains azo linkage?
  • A
    Hydrazine
  • p-Hydroxyazobenzene
  • C
    N-Nitrosodiethylamine
  • D
    Ethylenediamine
Answer
Correct option: B.
p-Hydroxyazobenzene
p-Hydroxyazobenzene
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MCQ 211 Mark
Identify ' $B$ ' in the following reactions $CH _3- C \equiv N \stackrel{ Na / C _2 H _3 OH }{\longrightarrow} A \stackrel{ NaNO / dilHCl }{\longrightarrow} B$
  • A
    $CH _3- CH _2- NH _2$
  • B
    $CH _3- CH _2- NO _2$
  • C
     $CH _3- CH _2 N _2{ }^{\oplus} Cl ^{\ominus}$
  • $CH _3- CH _2- OH$
Answer
Correct option: D.
$CH _3- CH _2- OH$
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MCQ 221 Mark
Which of the following compounds will dissolve in aqueous NaOH after undergoing reaction with Hinsberg reagent?
  • Ethylamine
  • B
    Triethylamine
  • C
    Trimethylamine
  • D
    Diethylamine
Answer
Correct option: A.
Ethylamine
Ethyl amine
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MCQ 231 Mark
Which one of the following compounds does not react with acetyl chloride?
  • A
    $CH _3- CH _2- NH _2$
  • B
    $\left( CH _3- CH _2\right)_2 NH$
  • $\left( CH _3- CH _2\right)_3 N$
  • D
    $C _6 H _5- NH _2$
Answer
Correct option: C.
$\left( CH _3- CH _2\right)_3 N$
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MCQ 241 Mark
Carbylamine test is given by
  • Primary amine
  • B
    Secondary amine
  • C
    Tertiary amine
  • D
    Both secondary and tertiary amines
Answer
Correct option: A.
Primary amine
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MCQ 251 Mark
Which type of amine does produce $N _2$ when treated with $HNO _2$ ?
  • Primary amine
  • B
    Secondary amine
  • C
    Tertiary amine
  • D
    Both primary and secondary amines
Answer
Correct option: A.
Primary amine
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MCQ 261 Mark
Which of the following has the highest basic strength?
  • A
    Trimethylamine
  • B
    Methylamine
  • C
    Ammonia
  • Dimethylamine
Answer
Correct option: D.
Dimethylamine
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MCQ 271 Mark
Which one of the following compounds has the highest boiling point?
  • n-Butylamine
  • B
    sec-Butylamine
  • C
    isobutylamine
  • D
    tert-Butylamine
Answer
Correct option: A.
n-Butylamine
n-Butylamine
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MCQ 281 Mark
Isobutylamine is an example of ………………………..
  • 2° amine
  • B
    3° amine
  • C
    1° amine
  • D
    quaternary ammonium salt.
Answer
Correct option: A.
2° amine
2° amine
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MCQ 291 Mark
The hybridization of nitrogen in primary amine is ………………………..
  • A
    $sp$
  • B
    $sp ^2$
  • $s^3$
  • D
    $sp ^3 d$
Answer
Correct option: C.
$s^3$
$sp ^3 d$
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MCQ 301 Mark
What is IUPAC name of allylamine?
  • A
    Propan-1-amine
  • Prop-2-en-1-amine
  • C
    Prop-1-en-2-amine
  • D
    Propan-2-amine
Answer
Correct option: B.
Prop-2-en-1-amine
(b) :
Image
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MCQ 311 Mark
Which of the following amines undergoes acylation reaction?
  • A
    Ethyldimethylamine
  • N-Methylaniline
  • C
    N,N-Dimethylmethanamine
  • D
    N,N-Dimethylaniline
Answer
Correct option: B.
N-Methylaniline
(b) : Primary and secondary amines undergo acylation reaction.
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MCQ 321 Mark
What is the IUPAC name of following compound?
  • A
    1-Methylbut-2-en-1-amine
  • Pent-3-en-2-amine
  • C
    Pent-2-en-4-amine
  • D
    4-Methyl but-2-en-4-amine
Answer
Correct option: B.
Pent-3-en-2-amine
(b) :
Image
The IUPAC name of the compound is pent-3-en-2-amine.
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MCQ 331 Mark
What is molecular formula of cyclohexylamine?
  • A
    $C _6 H _8 N$
  • $C _6 H _{10} N$
  • C
    $C _6 H _{12} N$
  • D
    $C _6 H _{13} N$
Answer
Correct option: B.
$C _6 H _{10} N$
(b) :
Image
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MCQ 341 Mark
Which of the following amines on heating with chloroform generate foul smelling product?
  • Ethanamine
  • B
    Ethylmethyl amine
  • C
    Ethyldimethyl amine
  • D
    Diethylmethyl amine
Answer
Correct option: A.
Ethanamine
(a) : Primary amines, when heated with chloroform and alcoholic $KOH$, give foul smelling product i.e., isocyanide.
$
\underset{\text { Ethanamine }}{ C _2 H _5 NH _2} \xrightarrow{ CHCl _3+\text { alc. } KOH } \underset{\text { Ethyl isocyanide }}{ C _2 H _5 NC }+3 KCl +3 H _2 O
$
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MCQ 351 Mark
Which isomer among the following has highest boiling point?
  • n-Butylamine
  • B
    tert-Butylamine
  • C
    Ethyldimethylamine
  • D
    Diethylamine
Answer
Correct option: A.
n-Butylamine
(a) : In case of isomeric amines, boiling point decreases with branching.
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MCQ 361 Mark
Identify the product ' $B$ ' in the following sequence of reactions.$CH _3 Br \xrightarrow{ KCN } A \xrightarrow{ Na / C _2 H _3 OH } B$
  • A
    Methyl cyanide
  • Ethylamine
  • C
    Methylamine
  • D
    Ethyl cyanide
Answer
Correct option: B.
Ethylamine
(b):
$
CH _3 Br \xrightarrow{ KCN } \underset{(A)}{ CH _3 CN } \xrightarrow{ Na  / C _2 H _5 OH } \underset{\text { Ethylamine (B) }}{ CH _3 CH _2 NH _2}
$
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MCQ 371 Mark
What is the IUPAC name of $\left( CH _3\right)_2 N - CH _3$ ?
  • A
    Trimethylamine
  • B
    2,2-Dimethylmethanamine
  • N,N-Dimethylmethanamine
  • D
    $N$-Methyldimethanamine
Answer
Correct option: C.
N,N-Dimethylmethanamine
(c) :
Image
Trimethylamine (common name)
$N, N$-Dimethylmethanamine(IUPAC name)
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MCQ 381 Mark
Which among the following reagents is used to distinguish primary, secondary and tertiary amines according to solubility in alkaline medium?
  • Benzenesulphonyl chloride
  • B
    Iodoform
  • C
    Ethylene glycol
  • D
    Acetyl chloride
Answer
Correct option: A.
Benzenesulphonyl chloride
(a) : Benzenesulphonyl chloride $\left( C _6 H _3 SO _2 Cl \right)$, which is also known as Hinsberg reagent is used to distinguish primary, secondary and tertiary amines.
The reaction of benzenesulphonyl chloride with primary amine yields $N$-alkylbenzene sulphonamide which is soluble in alkali. With secondary amine, it yields $N , N$-dialkylbenzene sulphonamide which is insoluble in alkali. Tertiary amines do not react with benzenesulphonyl chloride.
$
C _6 H _5 SO _2 Cl + RNH _2 \longrightarrow C _6 H _5 SO _2 NHR
$
(Soluble in alkali due to presence of acidic hydrogen atom attached to nitrogen atom.)
$
C _6 H _5 SO _2 Cl + R _2 NH \longrightarrow C _6 H _5 SO _2 NR _2
$
(Insoluble in akali due to absence of any hydrogen atom attached to nitrogen atom.)
$
C _6 H _5 SO _2 Cl _3+ R _3 N \longrightarrow \text { No reaction. }
$
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MCQ 391 Mark
Tertiary amines with Hinsberg's reagent give
  • no reaction
  • B
    products which are same as that of $1^{\circ}$ amine
  • C
    products which are same as that of $2^{\circ}$ amine
  • D
    products which are a quaternary salt.
Answer
Correct option: A.
no reaction
(a) : Benzenesulphonyl chloride $\left( C _6 H _3 SO _2 Cl \right)$ is also known as Hinsberg's reagent and tertiary amines do not react with Hinsberg's reagent.
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MCQ 401 Mark
Which of the following reactions does not yield an amine?
  • A
    $R - X + NH _3 \longrightarrow$
  • B
    $R - CH = NOH +[ H ] \xrightarrow[ C _2 H _2 OH ]{ Na }$
  • $R - CN + H _2 O \xrightarrow{ H ^{+}}$
  • D
    $R - CONH _2+[ H ] \xrightarrow{ LiAlH _4}$
Answer
Correct option: C.
$R - CN + H _2 O \xrightarrow{ H ^{+}}$
(c) :
$\begin{array}RR-X+ NH _3 \longrightarrow R- NH _2+ H X \\
R- CH = NOH +4[ H ] \xrightarrow[\mathrm{C}_2 \mathrm{H}_5 \mathrm{OH}]{\mathrm{Na}} R CH _2 NH _2+ H _2 O \\
R- CONH _2+4[ H ] \xrightarrow{ LiAl _4} R CH _2 NH _2+ H _2 O
\end{array}
$
$R- CN + H _2 O \xrightarrow{ H ^{+}} R- COOH$
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MCQ 411 Mark
Nitroalkanes are obtained in laboratory from primary or secondary alkyl halides by the action
  • $AgNO _2$
  • B
    $NaNO _3$
  • C
    $AgNO _3$
  • D
    $HNO _3$
Answer
Correct option: A.
$AgNO _2$
(a) : $R-X+ AgNO _2 \xrightarrow{\Delta} R- NO _2+ AgX$ (akc.)
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MCQ 421 Mark
Identify the amine formed when ethyltrimethyl ammonium iodide is treated with silver hydroxide and further heated strongly.
  • A
    $C _2 H _5 N \left( CH _3\right)_2$
  • B
    $C _2 H _5 NH _2$
  • $\left( CH _3\right)_3 N$
  • D
    $CH _3 NH _2$
Answer
Correct option: C.
$\left( CH _3\right)_3 N$
(c) :
Image
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MCQ 431 Mark
$\alpha$-Chlorosodium acetate on boiling with aqueous sodium nitrite gives
  • nitromethane
  • B
    $\alpha$-chloronitromethane
  • C
    nitroethane
  • D
    acetyl chloride.
Answer
Correct option: A.
nitromethane
(a) :
Image
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MCQ 441 Mark
Which of the following reactions is used to prepare aryl fluorides from diazonium salts and fluoroboric acid?
  • A
    Sandmeyer reaction
  • Balz-Schiemann reaction
  • C
    Gattermann reaction
  • D
    Swarts reaction
Answer
Correct option: B.
Balz-Schiemann reaction
(b): Balz-Schiemann reaction,
Image
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MCQ 451 Mark
Identify the product ' $C$ ' in the following reaction:$\text { Aniline }\xrightarrow[\text { Pyridine }]{\left( CH _3 CO \right)_2 O } A \xrightarrow[ CH _3 COOH ]{ Br _2}$$B \xrightarrow{ H ^{+} \text {or } OH ^{-}} C$
  • A
    Acetanilide
  • B
    $p$-Bromoacetanilide
  • p-Bromoaniline
  • D
    o-Bromoaniline
Answer
Correct option: C.
p-Bromoaniline
(c) :
Image
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MCQ 461 Mark
The amine which reacts with p-toluenesulphonyl chloride to give a clear solution which on acidification gives insoluble compound is
  • $C _2 H _5 NH _2$
  • B
    $\left( C _2 H _5\right)_2 NH$
  • C
    $\left( C _2 H _5\right)_3 N$
  • D
    $CH _3 NHC _2 H _5$
Answer
Correct option: A.
$C _2 H _5 NH _2$
(a): A primary amine gives a clear solution on reaction with $p$-toluenesulphonyl chloride which on further acidification gives an insoluble $N$-alkylbenzene sulphonamide.
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MCQ 471 Mark
Which of the following statement is incorrect in case of Hofmann bromamide degradation?
  • A
    Reaction is useful for decreasing length of carbon chain by one carbon atom.
  • It gives tertiary amine.
  • C
    It gives primary amine.
  • D
    Aqueous or alcoholic $KOH$ is used with bromine.
Answer
Correct option: B.
It gives tertiary amine.
(b) : Hofmann bromamide reaction converts acid amides to primary amines.
$
R CONH _2+ Br _2+4 KOH \xrightarrow{\text { Heat }} \underset{amine}R NH _2+2 KBr + K _2 CO _3+2 H _2 O
$
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MCQ 481 Mark
Nitration of which among the following compounds yields cyclonite?
  • A
    Formaldehyde
  • B
    Benzaldehyde
  • Urotropine
  • D
    Acetaldehyde ammonia
Answer
Correct option: C.
Urotropine
(c) :
Image
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MCQ 491 Mark
Primary nitroalkanes are obtained in good yield by oxidising aldoximes with the help of
  • trifluoroperoxyacetic acid
  • B
    acidified potassium permanganate
  • C
    concentrated nitric acid
  • D
    potassium dichromate and dilute sulphuric acid.
Answer
Correct option: A.
trifluoroperoxyacetic acid
(a) :
Image
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MCQ 501 Mark
Select the compound which on treatment with nitrous acid liberates nitrogen.
  • A
    Nitroethane
  • B
    Triethylamine
  • C
    Diethylamine
  • Ethylamine
Answer
Correct option: D.
Ethylamine
Primary aliphatic amines react with nitrous acid to form aliphatic diazonium salts which being unstable, liberate nitrogen gas and alcohols.
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MCQ 511 Mark
The amine ' $A$ ' when treated with nitrous acid gives yellow oily substance. The amine $A$ is
  • A
    triethylamine
  • B
    trimethylamine
  • C
    aniline
  • methylphenylamine.
Answer
Correct option: D.
methylphenylamine.
(d) : Secondary amines on reaction with nitrous acid form nitrosoamines which are yellow oily liquids insoluble in water.
Image
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MCQ 521 Mark
Diethylamine when treated with nitrous acid yields
  • A
    diethylammonium nitrite
  • B
    ethyl alcohol
  • $N$-nitrosodiethylamine
  • D
    triethylammonium nitrite.
Answer
Correct option: C.
$N$-nitrosodiethylamine
(c) : Secondary amines react with nitrous acid to form nitrosoamines which are yellow oily liquids insoluble in water.
$
\left( C _2 H _5\right)_2 NH + HONO \longrightarrow \underset{\text { N-Nitrosodiethylamine }}{\left( C _2 H _5\right)_2 N - N = O + H _2 O }
$
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MCQ 531 Mark
Replacement of diazonium group by fluorine is known as
  • A
    Gattermann reaction
  • B
    Sandmeyer reaction
  • C
    Balz-Schiemann reaction
  • D
    Etard reaction.
Answer
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MCQ 551 Mark
An organic compound ' $X$ ' having molecular formula $C _4 H _{11} N$ reacts with $p$-toluene sulphonyl chloride to form a compound ' $Y$ ' that is soluble in aqueous $KOH$. Compound ' $X$ ' is optically active and reacts with acetyl chloride to form compound ' $Z$. Identify the compound $' Z$ '
  • A
    $CH _3 CH _2 CH _2 CH _2 NHCOCH _3$

  • Image

  • C

    Image
  • D

    Image

Answer
Correct option: B.

Image

(b) :
Image
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MCQ 571 Mark
Which of the following compounds is NOT prepared by the action of alcoholic $NH _3$ on alkyl halide?
  • A
    $CH _3 NH _2$
  • B
    $CH _3- CH _2- NH _2$
  • C
    $CH _3- CH _2- CH _2- NH _2$
  • $\left( CH _3\right)_3 CNH _2$
Answer
Correct option: D.
$\left( CH _3\right)_3 CNH _2$
$\left( CH _3\right)_3 CNH _2$
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MCQ 581 Mark
Which of the following amines yields foul smelling product with haloform and alcoholic KOH?
  • Ethyl amine
  • B
    Diethyl amine
  • C
    Triethyl amine
  • D
    Ethyl methyl amine
Answer
Correct option: A.
Ethyl amine
Ethyl amine
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MCQ 591 Mark
Identify the compound B in the following series of reactions.
$\xrightarrow{ Na / \text { Alc. }} A \xrightarrow[\text { dil. } HCl ]{ NaNO _2} B$
  • A
    n-propyl chloride
  • B
    propanamine
  • n-propyl alcohol
  • D
    Isopropyl alcohol
Answer
Correct option: C.
n-propyl alcohol
n-propyl alcohol
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MCQ 601 Mark
Chloropicrin is used as
  • A
    antiseptic
  • B
    antibiotic
  • insecticide
  • D
    anaesthetic
Answer
Correct option: C.
insecticide
insecticide
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MCQ 611 Mark
Identify the compound ' $B$ ' in the following series of reactions:
$\begin{aligned}
& \text { Ethanenitrile } \xrightarrow{ Na / \text { alcohol }} \text { 'A' } \\
& \xrightarrow{ NaNO _2 / \text { dil. } HCl } \text { 'B' }
\end{aligned}$
  • A
    $CH _3- CH _2- Cl$
  • B
    $CH _3- CH _2- NH _2$
  • $CH _3- CH _2- OH$
  • D
    $CH _3- CH _2- CH _2- OH$
Answer
Correct option: C.
$CH _3- CH _2- OH$
$CH _3- CH _2- OH$
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MCQ 621 Mark
n-Propylamine can be prepared by catalytic reduction of
  • A
    n-propyl cyanide
  • propionaldoxime
  • C
    acetoxime
  • D
    nitroethane
Answer
Correct option: B.
propionaldoxime
propionaldoxime
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MCQ 631 Mark
Which of the following amines does not undergo acetylation?
  • A
    t-Butylamine
  • B
    Ethylamine
  • C
    Diethylamine
  • Triethylamine
Answer
Correct option: D.
Triethylamine
Triethylamine
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MCQ 641 Mark
How many moles of methyl iodide are required to convert ethylamine, diethylamine and triethylamine into quaternary ammonium salt, respectively?
  • A
    1, 2 and 3
  • B
    2, 3 and 1
  • 3, 2 and 1
  • D
    3, 1 and 2
Answer
Correct option: C.
3, 2 and 1
3, 2 and 1
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MCQ 651 Mark
Which of the following amines is most basic in nature?
  • A
    2, 4-Dichloroaniline
  • 2, 4-Dimethylaniline
  • C
    2, 4-Dinitroaniline
  • D
    2, 4-Dibromoaniline
Answer
Correct option: B.
2, 4-Dimethylaniline
2, 4-Dimethylaniline
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MCQ 661 Mark
The compounds ‘A’, ‘B’ and ‘C’ react with methyl iodide to give finally quaternary ammonium iodides. Only ‘C’ gives carbylamines test while only ‘A’ forms yellow oily compound on reaction with nitrous acid. The compounds ‘A’, ‘B’ and ‘C’ are respectively.
  • A
    butan-1-amine, N-ethylethanamine and N, N-dimethylethanamine.
  • N-ethylethanamine, N, N-dimethylethanamine and butan-1 – amine.
  • C
    N, N-dimethylethanamine, N-ethylethanamine and butan-1-amine.
  • D
    N-ethylethanamine, butan-1-amine and N-ethylethanamine.
Answer
Correct option: B.
N-ethylethanamine, N, N-dimethylethanamine and butan-1 – amine.
N-ethylethanamine, N, N-dimethylethanamine and butan-1 – amine.
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MCQ 671 Mark
Identify the statement about the basic nature of amines.
  • A
    Alkylamines are weaker bases than ammonia.
  • B
    Arylamines are stronger bases than alkylamines.
  • Secondary aliphatic amines are stronger bases than primary aliphatic amines.
  • D
    Tertiary aliphatic amines are weaker bases than arylamines.
Answer
Correct option: C.
Secondary aliphatic amines are stronger bases than primary aliphatic amines.
Secondary aliphatic amines are stronger bases than primary aliphatic amines.
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MCQ 681 Mark
Which of the following compounds has highest boiling point?
  • A
    Ethane
  • Ethanoic acid
  • C
    Ethanol
  • D
    Ethanamine
Answer
Correct option: B.
Ethanoic acid
Ethanoic acid
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MCQ 691 Mark
Which of the following amines cannot be prepared by Gabriel phthalimide synthesis?
  • A
    sec-Propylamine
  • B
    tert-Butylamine
  • C
    2-Phenylethylamine
  • N-Methyl benzyl amine
Answer
Correct option: D.
N-Methyl benzyl amine
N-Methyl benzyl amine
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MCQ 701 Mark
When primary amine reacts with $CHCl _2$ in alcoholic $KOH$, the product is
  • A
    aldehyde
  • B
    alcohol
  • C
    cyanide
  • an isocyanide
Answer
Correct option: D.
an isocyanide
an isocyanide
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MCQ 711 Mark
Reduction of benzene diazonium chloride with Zn/HCl gives
  • A
    phenyl hydrazine
  • B
    hydrazine hydrate
  • aniline
  • D
    ozo benzene
Answer
Correct option: C.
aniline
aniline
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MCQ 721 Mark
Which of the following exist as Zwitter ion?
  • A
    Salicylic acid
  • Suphanilic acid
  • C
    p-Aminophenol
  • D
    p-Amino acetophenone
Answer
Correct option: B.
Suphanilic acid
Suphanilic acid
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MCQ 731 Mark
Amine that cannot be prepared by Gabriel phthalimide synthesis is
  • aniline
  • B
    benzyl amine
  • C
    methyl amine
  • D
    iso-butyl amine
Answer
Correct option: A.
aniline
aniline
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MCQ 741 Mark
Identify the weakest base amongst the following :
  • A
    p-methoxyaniline
  • B
    o-toluidine
  • C
    benzene-1, 4-diamine
  • 4-aminobenzoic acid
Answer
Correct option: D.
4-aminobenzoic acid
4-aminobenzoic acid
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MCQ 761 Mark
The correct order of increasing basic strength is
  • $NH _3< CH _3 NH _2<\left( CH _3\right)_2 NH$
  • B
    $CH _3 NH _2<\left( CH _3\right)_2 NH < NH _3$
  • C
    $CH _3 NH _2< NH _3<\left( CH _3\right)_2 NH$
  • D
    $\left( CH _3\right)_2 NH < NH _3< CH _3 NH _2$
Answer
Correct option: A.
$NH _3< CH _3 NH _2<\left( CH _3\right)_2 NH$
$NH _3< CH _3 NH _2<\left( CH _3\right)_2 NH$
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MCQ 771 Mark
Amines are basic in nature
  • A
    as they have a fishy odour
  • B
    as they form quaternary ammonium salts with alkyl halides
  • due to the presence of an unshared pair of electrons on the nitrogen atom
  • D
    all of these
Answer
Correct option: C.
due to the presence of an unshared pair of electrons on the nitrogen atom
due to the presence of an unshared pair of electrons on the nitrogen atom
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MCQ 781 Mark
In the acetylation reaction the H-atom of an amine is replaced by
  • A
    a carbonyl group
  • B
    an alkyl group
  • an acetyl group
  • D
    an imino group
Answer
Correct option: C.
an acetyl group
an acetyl group
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MCQ 791 Mark
A mixture of $CH _3 NH _2,\left( CH _3\right)_2 NH ,\left( CH _3\right)_3 N$ can be distinguished by using
  • A
    $HCl$
  • $HNO _2$
  • C
    $HNO _3$
  • D
    $H _2 SO _4$
Answer
Correct option: B.
$HNO _2$
$HNO _2$
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MCQ 801 Mark
n-propyl alcohol is obtained when $HNO _2$ is treated with
  • A
    Image
  • B
    Image
  • $CH _3- CH _2- CH _2- NH _2$
  • D
    $\left( C _2 H _5\right)_2 NH$
Answer
Correct option: C.
$CH _3- CH _2- CH _2- NH _2$
$CH _3- CH _2- CH _2- NH _2$
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MCQ 811 Mark
Dimethyl amine reacts with acetyl chloride to give
  • A
    N-acetyl methyl amine
  • B
    N-acetyl ethyl amine
  • N-acetyl dimethyl amine
  • D
    N-acetyl diethyl amine
Answer
Correct option: C.
N-acetyl dimethyl amine
N-acetyl dimethyl amine
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MCQ 821 Mark
The compound used for acylation of amine is
  • A
    $\left( CH _3 CO \right)_2 O$
  • B
    $CH _3 COOH$
  • C
    $CH _3 COCl$
  • D
    both (a) and ( c)
Answer
both (a) and (c)
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MCQ 831 Mark
Ethanamine reacts with excess of acetyl chloride to form
  • A
    $C _2 H _5 NHCOCH _3$
  • B
    $C _2 H _5 N \left( CH _3\right)_2$
  • $C _2 H _5 N \left( COCH _3\right)_2$
  • D
    $C _2 H _5 N + H _3 Cl$
Answer
Correct option: C.
$C _2 H _5 N \left( COCH _3\right)_2$
$C _2 H _5 N \left( COCH _3\right)_2$
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MCQ 841 Mark
The number of electrons in the valence shell of nitrogen in methyl amine is
  • A
    5
  • B
    3
  • 8
  • D
    7
Answer
Correct option: C.
8
8
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MCQ 851 Mark
The number of coordinate bond/bonds in a trialkyl ammonium ion is
  • one
  • B
    two
  • C
    three
  • D
    four
Answer
Correct option: A.
one
one
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MCQ 861 Mark
In trimethyl ammonium ion, the number of sigma bonds attached to nitrogen are
  • A
    2
  • 3
  • C
    4
  • D
    5
Answer
Correct option: B.
3
3
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MCQ 871 Mark
The basic nature of amines in an aqueous solution is in the order of
  • A
    tert. > sec. > pri.
  • sec. > pri. > tert.
  • C
    pri. > sec. > tert.
  • D
    pri. > tert. > sec.
Answer
Correct option: B.
sec. > pri. > tert.
sec. > pri. > tert.
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MCQ 881 Mark
Ammes are basic in nature because
  • of the nitrogen atom contain or lone pair of electrons
  • B
    they give H+ ions in aqueous medium
  • C
    they form quaternary ammonium salts when heated with acids
  • D
    both (a) and (c)
Answer
Correct option: A.
of the nitrogen atom contain or lone pair of electrons
of the nitrogen atom contain or lone pair of electrons
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MCQ 891 Mark
Triethylamine when treated with nitrous acid gives
  • A
    an alcohol
  • B
    a nitrosamine
  • C
    a monoacetyl derivative
  • a soluble nitrite salt
Answer
Correct option: D.
a soluble nitrite salt
a soluble nitrite salt
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MCQ 901 Mark
The amine which reacts with $NaNO _2$ and dil. $HCl$ to give yellow oily compound is
  • A
    ethylamine
  • B
    isopropylamine
  • C
    sec-butylamine
  • dimethylamine
Answer
Correct option: D.
dimethylamine
dimethylamine
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MCQ 911 Mark
The reaction which is given only by primary amines is
  • A
    acetylation
  • B
    alkylation
  • C
    reaction with $HNO _2$
  • carbyl amine test
Answer
Correct option: D.
carbyl amine test
carbyl amine test
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MCQ 921 Mark
The true statement about ethylamine is
  • A
    it is weaker base than ammonia
  • B
    it is stronger base than diethyl amine
  • it is stronger base than triethyl amine
  • D
    it is stronger base than alkali
Answer
Correct option: C.
it is stronger base than triethyl amine
it is stronger base than triethyl amine
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MCQ 931 Mark
A secondary alkyl halide is heated with excess of ammonia, the major product obtained is
  • primary amine
  • B
    secondary amine
  • C
    tertiary amine
  • D
    quaternary ammonium salt
Answer
Correct option: A.
primary amine
primary amine
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MCQ 941 Mark
How many hydrogen atoms are required for the reduction of 1-nitropropane to n-propyl amine?
  • A
    Four
  • B
    Three
  • Six
  • D
    Two
Answer
Correct option: C.
Six
Six
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MCQ 951 Mark
Chloroethane when boiled with excess of aqueous-alcoholic ammonia gives hydrochloric acid and
  • A
    triethyl amine
  • B
    trimethyl amine
  • C
    diethyl amine
  • ethyl amine
Answer
Correct option: D.
ethyl amine
ethyl amine
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MCQ 961 Mark
Which of the following compounds can be converted into amines in the presence of Na and alcohol?
  • A
    Alkyl nitriles
  • B
    Aldoxime
  • C
    Ketoxime
  • All of these
Answer
Correct option: D.
All of these
All of these
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MCQ 971 Mark
Isopropylamine is obtained by the reduction of
  • acetoxime
  • B
    acetaldoxime
  • C
    formaldoxime
  • D
    aldoxime
Answer
Correct option: A.
acetoxime
acetoxime
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MCQ 981 Mark
Ethyl bromide reacts with excess of alcoholic ammonia, the major product is…………………….
  • ethyl amine
  • B
    diethylamine
  • C
    triethylamine
  • D
    tetraethyl ammonium bromide
Answer
Correct option: A.
ethyl amine
ethyl amine
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MCQ 991 Mark
IUPAC name of diethylmethyl amine is ………………
  • A
    methyl amino propane
  • N-Ethyl-N-methylhexanamine
  • C
    methyl diethanamine
  • D
    amino pentane
Answer
Correct option: B.
N-Ethyl-N-methylhexanamine
N-Ethyl-N-methylhexanamine
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MCQ 1001 Mark
Isopropyl amine and trimethyl amine are ……………..
  • A
    acidic in nature
  • B
    electrophilic compounds
  • structural isomers
  • D
    optically active compounds
Answer
Correct option: C.
structural isomers
structural isomers
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MCQ 1011 Mark
The IUPAC name of ethyl dimethyl amine is ……………..
  • A
    2-amino propane
  • N,N-dimethyl ethanolamine
  • C
    ethyl methanamine
  • D
    propanamine
Answer
Correct option: B.
N,N-dimethyl ethanolamine
N,N-dimethyl ethanolamine
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MCQ 1021 Mark
Tertiary butyl amine is a
  • primary amine
  • B
    secondary amine
  • C
    tertiary amine
  • D
    quaternary ammonium salt
Answer
Correct option: A.
primary amine
primary amine
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MCQ 1031 Mark
N-methyl-N-ethyl-n-propyl amine is
  • A
    a primary amine
  • B
    a secondary amine
  • a tertiary amine
  • D
    an alkyl nitrile
Answer
Correct option: C.
a tertiary amine
a tertiary amine
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MCQ 1041 Mark
Which of the following is an amine?
  • A
    $C _2 H _5 N \left( COCH _3\right)_2$
  • B
    $\left( C _2 H _5\right)_2 N - N =0$
  • C
    $\left( C _2 H _5\right)_3 N$
  • All of these
Answer
Correct option: D.
All of these
All of these
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