MCQ 11 Mark
Identify Swartz reaction from the following.
- A
$R - OH + HX \underset{\text { condition }}{\stackrel{\text { Suitable }}{\longrightarrow}} R - X + H _2 O$
- ✓
$R - Cl + AgF \stackrel{\Delta}{\longrightarrow} R - F + AgCl$
- C
$R - OH + PCl _5 \longrightarrow R - Cl + HCl + POCl _3$
- D
AnswerCorrect option: B. $R - Cl + AgF \stackrel{\Delta}{\longrightarrow} R - F + AgCl$
View full question & answer→MCQ 21 Mark
Which among the following is NOT an example of Wurtz reaction?
- A
$CH _3 Br + C _2 H _5 Br \underset{\text { dry ether }}{\longrightarrow} C _2 H _6+ C _3 H _8+ C _4 H _{10}$
- ✓
- C
$2 CH _3 Br +2 Na \stackrel{\text { dry ether }}{\longrightarrow} C _2 H _6+2 NaBr$
- D
$2 C _2 H _5 Br +2 Na \stackrel{\text { dry ether }}{\longrightarrow} C _4 H _{10}+2 NaBr$
View full question & answer→MCQ 31 Mark
Which among the following examples of halogen derivatives does NOT correctly match with its type of compound?
- A
Halo alkane $\quad: \quad$ Methyl chloride
- B
Benzylic halide $\quad: \quad$ Benzyl chloride
- C
Haloarene : Chlorobenzene
- ✓
Allylic halide $\quad: \quad$ 1-chloroethene
AnswerCorrect option: D. Allylic halide $\quad: \quad$ 1-chloroethene
View full question & answer→MCQ 41 Mark
Which among the following compounds has chiral carbon atom?
- A
$\left( CH _3 CH _2\right)_2 CHCl$
- ✓
$CH _3 CH ( Cl ) CH _2 CH _3$
- C
$\left( CH _3\right)_3- CCl$
- D
$\left( CH _3\right)_2- CHCl$
AnswerCorrect option: B. $CH _3 CH ( Cl ) CH _2 CH _3$
View full question & answer→MCQ 51 Mark
Which of the following compounds has difficulty in breaking $C - X$ bond ?
- A
2,4,6-trinitrochlorobenzene
- ✓
$m$ - nitrochlorobenzene
- C
- D
$P$ - nitrochlorobenzene
AnswerCorrect option: B. $m$ - nitrochlorobenzene
View full question & answer→MCQ 61 Mark
The correct order of reactivity for reactions involving cleavage of $C - X$ bond in following compounds is
- A
I $>$ II $>$ III
- ✓
III $>$ II $>$ I
- C
II $>$ III $>$ I
- D
I $>$ III $>$ II
AnswerCorrect option: B. III $>$ II $>$ I
View full question & answer→MCQ 71 Mark
Identify optically active substance from the following.
- ✓
$CH _3 CH ( Br ) CH _2 CH _3$
- B
$\left( CH _3\right)_2 C ( Br ) CH _3$
- C
$CH _3\left( CH _2\right)_3 CH _2 Br$
- D
$\left( CH _3\right)_2 CH CH ( Br ) CH \left( CH _3\right)_2$
AnswerCorrect option: A. $CH _3 CH ( Br ) CH _2 CH _3$
View full question & answer→MCQ 81 Mark
Identify tertiary alkyl halide from the following.
- A
$\left( CH _3\right)_3- C - CH _2- Br$
- B
$CH _3-\left( CH _2\right)_4- CH _2- Br$
- C
$\left( CH _3\right)_2- CH - CH _2- Br$
- ✓
$\left( CH _3\right)_3- C - Br$
AnswerCorrect option: D. $\left( CH _3\right)_3- C - Br$
View full question & answer→MCQ 91 Mark
{ Identify the alkyl halide that undergoes } $SN ^2 $ { reaction most fastly. }
View full question & answer→MCQ 101 Mark
Identify product $P$ in the following reaction.
$C _2 H _5- Mg - Br + NH _3 \longrightarrow P$
- ✓
$C _2 H _6$
- B
$HC \equiv CH$
- C
$H _2 C = CH _2$
- D
$C _2 H _5 Br$
AnswerCorrect option: A. $C _2 H _6$
View full question & answer→MCQ 111 Mark
Identify Finkelstein reaction from the following
- A
$C _2 H _5 Cl + KCN \stackrel{\Delta}{\longrightarrow} C _2 H _5 CN + KCl$
- B
$C _2 H _5 Cl + AgF \stackrel{\Delta}{\longrightarrow} C _2 H _5 F + AgCl$
- ✓
$C _2 H _5 Cl + NaI \stackrel{\text { acetone }}{\longrightarrow} C _2 H _5 I + NaCl$
- D
$C _2 H _5 Cl + NaOH \longrightarrow C _2 H _5 OH + NaCl$
AnswerCorrect option: C. $C _2 H _5 Cl + NaI \stackrel{\text { acetone }}{\longrightarrow} C _2 H _5 I + NaCl$
View full question & answer→MCQ 121 Mark
Choose the false statement from following.
- A
Good yield of alkyl halide may be obtained by heating alcohols with $NaI$ in 95\% $H _3 PO _4$.
- B
Constant boiling $HBr (48 \%)$ is used for the preparation of alkyl bromides from alcohols.
- C
Tertiary alcohol readily react with conc. $HCl$ in absence of zinc chloride.
- ✓
The order of reactivity of alcohols with a given halo acid $1^{\circ}>2^{\circ}>3^{\circ}$
AnswerCorrect option: D. The order of reactivity of alcohols with a given halo acid $1^{\circ}>2^{\circ}>3^{\circ}$
View full question & answer→MCQ 131 Mark
WLive Which of the following reactions is used to prepare toluene from bromobenzene?
MCQ 141 Mark
What is the product formed when aniline is treated with $NaNO _2+ HCl$ previous to hydrolysis?
- ✓
Benzene diazonium chloride
- B
Phenol $+ N _2 \uparrow$
- C
- D
AnswerCorrect option: A. Benzene diazonium chloride
View full question & answer→MCQ 151 Mark
Which among the following statements is NOT correct about $SN ^2$ reaction mechanism?
AnswerCorrect option: D. $SN ^2$ mechanism is observed in tertiary alkyl halides.
View full question & answer→MCQ 161 Mark
Which among the following compounds is used in Swartz reaction?
MCQ 171 Mark
Identify chiral molecule from the following.
- A
$\left( CH _3\right)_2- CH - CH ( Cl )- CH -\left( CH _3\right)_2$
- ✓
$CH _3 CH ( Cl ) CH _2 CH _3$
- C
$CH _3 CH ( Cl ) CH _3$
- D
$\left( CH _3\right)_3- C - Cl$
AnswerCorrect option: B. $CH _3 CH ( Cl ) CH _2 CH _3$
View full question & answer→MCQ 181 Mark
Which among the following compounds is vinylic halide?
MCQ 191 Mark
Which among the following compounds converts alkyl halides to nitro alkanes?
MCQ 201 Mark
Which among the following compounds have highest boiling point ?
AnswerCorrect option: A. $CH _3 CH ( Cl ) CH _2 CH _3$
View full question & answer→MCQ 211 Mark
Which among the following is a Lucas reagent?
- A
$H _2 / Ni$
- ✓
$HCl / ZnCl _2$
- C
$Na - Hg / H _2 O$
- D
$Zn - Hg / HCl$
AnswerCorrect option: B. $HCl / ZnCl _2$
View full question & answer→MCQ 221 Mark
Which among the following reactions does not occur?
- A
$C _2 H _5 Br + KNO _2 \longrightarrow C _2 H _5- O - N = O + KBr$
- B
- C
$C _2 H _5 Br + AgCN \longrightarrow C _2 H _5 NC + AgBr$
- ✓
$C _2 H _5 Br + KCN \longrightarrow C _2 H _5 NC + KBr$
AnswerCorrect option: D. $C _2 H _5 Br + KCN \longrightarrow C _2 H _5 NC + KBr$
View full question & answer→MCQ 231 Mark
Which among the following compounds undergoes $\mathrm{SN}^2$ reaction fastly ?
View full question & answer→MCQ 241 Mark
Which of the following is used as source of dichlorocarbene
Question 251 Mark
The product ‘B’ in the above reaction sequence is,
MCQ 261 Mark
Choose the compound from the following that will react fastest by $S _{ N } 1$ mechanism.
View full question & answer→MCQ 271 Mark
Butanenitrile may be prepared by heating
- A
- B
- C
n-butyl chloride with KCN
- ✓
n-propyl chloride with KCN
AnswerCorrect option: D. n-propyl chloride with KCN
n-propyl chloride with KCN
View full question & answer→Question 281 Mark
An alkyl chloride on Wurtz reaction gives 2,2,5,5-tetramethylhexane. The same alkyl chloride on reduction with zinc-copper couple in alchol give hydrocarbon with molecular
formula $C_5H_{12}.$ What is the structure of alkyl chloride
View full question & answer→MCQ 291 Mark
Identify the chiral molecule from the following.
MCQ 301 Mark
The best method for preparation of alkyl fluorides is
- A
- ✓
- C
Free radical fluorination
- D
View full question & answer→MCQ 311 Mark
Which of the following is likely to undergo racemization during alkaline hydrolysis?
Question 321 Mark
$CH _3- CH = CH _2 \underset{\text { peroxide }}{\stackrel{\text { HI }}{\longrightarrow}}$The major product of the above reaction is,
View full question & answer→MCQ 331 Mark
The correct order of increasing reactivity of C-X bond towards nucleophile in the following compounds is
MCQ 341 Mark
Identify the reagent $A$ in the following conversion : Alkyl halide $\xrightarrow{A}$ Alkyl nitrite
- A
$KNO _3$
- B
$NaNO _3$
- C
$Ag NO _2$
- ✓
$KNO _2$
AnswerCorrect option: D. $KNO _2$
(d) : Alkyl halide $\xrightarrow{ KNO _3}$ Alkyl nitrite
View full question & answer→MCQ 351 Mark
Identify the chiral molecule from following.
Answer(c) :
${ }^*$Represents chiral centre having four different groups attached to carbon. View full question & answer→MCQ 361 Mark
Which among the following is haloalkyne?
Answer(a) : $\mathrm{HC} \equiv \mathrm{C}-\mathrm{Cl}$
Chloroethyne
In haloalkyne, halogen atom is bonded to an alkynyl group.
View full question & answer→MCQ 371 Mark
Which of the following is a structural formula of DDT?
Answer(c) : DDT is dichlorodiphenyltrichloroethane.
View full question & answer→MCQ 381 Mark
Which among the following is not a true statement for enantiomers?
- A
Enantiomers have identical refractive index.
- B
Enantiomers have same chemical properties.
- ✓
Enantiomers are superimposable mirror images of each other.
- D
Enantiomers have equal but opposite optical rotation.
AnswerCorrect option: C. Enantiomers are superimposable mirror images of each other.
(c): Enantiomers are the optical isomers which are non-superimposable mirror images of each other.
View full question & answer→MCQ 391 Mark
What is IUPAC name of the following compound?
- A
- ✓
3-Bromo-4-methylhex-3-ene
- C
4-Bromo-3-methylhex-3-ene
- D
4-Bromo-4-ethyl-3-methylbut-3-ene
AnswerCorrect option: B. 3-Bromo-4-methylhex-3-ene
(b) :
View full question & answer→MCQ 401 Mark
Identify the product obtained when bromoethane is heated with excess of alcoholic ammonia under pressure.
Answer(b): $C _2 H _5 Br + NH _3 \xrightarrow{\text { alc. }} C _2 H _5 NH _2+ HBr$
$\quad$$\quad$Bromoethane$\quad$Excess$\quad$$\quad$Ethanamine
When primary alkyl halide is treated with excess of alcoholic ammonia, then primary amine is obtained as the major product.
View full question & answer→MCQ 411 Mark
Identify tertiary alkyl halide from the following.
- A
$\left( CH _3\right)_3 C - CH _2- Br$
- ✓
$\left( CH _3\right)_3 C - Br$
- C
$CH _3-\left( CH _2\right)_4- CH _2- Br$
- D
$\left( CH _3\right)_2- CH - CH _2- Br$
AnswerCorrect option: B. $\left( CH _3\right)_3 C - Br$
(b) : The alkyl halide in which a halogen atom is directly attached to tertiary carbon atom is known as tertiary alkyl halide. The other three are primary alkyl halides.
View full question & answer→MCQ 421 Mark
Which of the following is obtained by the following reaction? $ 2 C _2 H _5 Br +2 Na \xrightarrow{\text { Dry ether }}$
Answer(a): $CH _3 CH _2 Br +2 Na + BrCH _2 CH _3 \xrightarrow{\text { Dry ether }}$
$
\underset{\text { Butane }}{ CH _3 CH _2 CH _2 CH _3+2 NaBr }
$
View full question & answer→MCQ 431 Mark
What is the IUPAC name of the following compound?
- ✓
2-Bromo-4,4,6-trimethyl octane
- B
3-Bromo-5,5,7-trimethyl octane
- C
2-Bromo-4,4,6-trimethyl nonane
- D
3-Bromo-5,5,7-trimethyl nonane
AnswerCorrect option: A. 2-Bromo-4,4,6-trimethyl octane
(a) 2-Bromo-4,4,6-trimethyl octane
View full question & answer→MCQ 441 Mark
Which reaction is useful in exchange of halogen in alkyl chloride by iodide?
Answer(b): Iodoalkanes can be easily prepared from the corresponding chloroalkanes by heating the chloroalkane with sodium iodide in acetone or methanol. This reaction is called Finkelstein reaction.
View full question & answer→MCQ 451 Mark
The reaction in which two molecules of chlorobenzene reacts with metallic sodium in presence of dry ether forming diphenyl is an example of
Answer(a): When a mixture of an alkyl halide and aryl halide gives an alkylarene on treatment with sodium in dry ether, the reaction is called Wurtz-Fittig reaction.
When only haloarenes are treated with sodium, aryls are formed. This reaction is called Fittig reaction.
Note : Option (a) should be Fittig reaction in place of Wurtz-Fittig reaction.
View full question & answer→MCQ 461 Mark
In case of $R, S$ configuration the group having highest priority is
- A
$- NO _2$
- B
$- NH _2$
- C
$- CN$
- ✓
$- OH$
AnswerCorrect option: D. $- OH$
(d) : Atomic mass of oxygen is more than that of $C$ and $N$.
View full question & answer→MCQ 471 Mark
Arenes on treatment with chlorine in presence of ferric chloride as a catalyst undergo what type of reaction?
- ✓
Electrophilic substitution
- B
Nucleophilic substitution
- C
- D
AnswerCorrect option: A. Electrophilic substitution
(a) :
This is an electrophilic substitution reaction.
View full question & answer→MCQ 481 Mark
In assigning $R, S$-configuration which among the following groups has highest priority?
- ✓
$- SO _3 H$
- B
$- COOH$
- C
$- CHO$
- D
AnswerCorrect option: A. $- SO _3 H$
(a) $- SO _3 H$
View full question & answer→MCQ 491 Mark
The conversion of ethyl bromide to ethyl iodide using sodium iodide and dry acetone, this reaction is known as
Answer(b) : Finkelstein reaction is used for the preparation of alkyl iodides from alkyl chlorides or bromides using sodium or potassium iodide and acetone.
$
\underset{\text { Ethyl bromide }}{ CH _3 CH _2 Br + KI \xrightarrow{\text { Acetone }}} \underset{\text { Ethyl iodide }}{ CH _3 CH _2 I }+ KBr
$
View full question & answer→MCQ 501 Mark
While assigning $R, S$ configuration the correct order of priority of groups attached to chiral carbon atom is
- A
$CONH _2> COCH _3> CH _2 OH > CHO$
- ✓
$CONH _2> COCH _3> CHO > CH _2 OH$
- C
$COCH _3> CONH _2> CHO > CH _2 OH$
- D
$CHO > CH _2 OH > COCH _3> CONH _2$
AnswerCorrect option: B. $CONH _2> COCH _3> CHO > CH _2 OH$
(b) : The order of priority is
$
CONH _2> COCH _3> CHO > CH _2 OH
$
View full question & answer→MCQ 511 Mark
The compound which is not formed when a mixture of $n$-butyl bromide and ethyl bromide treated with sodium metal in presence of dry ether is
Answer(d) :
View full question & answer→MCQ 521 Mark
If ' $n$ ' represents total number of asymmetric carbon atoms in a compound, the possible number of optical isomers of the compound is
- A
$2 n$
- B
$n^2$
- ✓
$2^n$
- D
$2 n+2$
Answer(c) : When the molecule cannot be divided into two equal halves i.e., unsymmetrical and $n$ is the number of asymmetric carbon atoms, then total number of optical isomers $=2^n$.
View full question & answer→MCQ 531 Mark
Chlorination of ethane is carried out in presence of
MCQ 541 Mark
Which among the following functional groups has been given the highest priority while assigning $R-S$ configuration?
- A
- ✓
$- CN$
- C
$- C _2 H _5$
- D
$- CH _3$
AnswerCorrect option: B. $- CN$
(b) : As the first atom is same in all the four groups, the priority will be decided by the second atom. Hence $- CN$ will be given highest priority because $N$ has the highest atomic number.
View full question & answer→MCQ 551 Mark
Benzene can be conveniently converted into n-propyl benzene by
AnswerCorrect option: B. Friedel-Crafts acylation with propionyl chloride followed by Wolff-Kishner reduction
(b) :
View full question & answer→MCQ 561 Mark
' $X$ ' is an optically active alkane having lowest molecular mass. Predict the structure of the major product obtained on monochlorination of ' $X$ '.
Answer(a) :
View full question & answer→MCQ 571 Mark
Identify the compound ' $D$ ' in the following series of reactions:
Answer(b) :
View full question & answer→MCQ 581 Mark
Alkaline hydrolysis of which among the following compounds leads to the formation of a racemate?
Answer(a) : 1-Bromo-1-phenylethane has one chiral carbon. It follows $S _{ N } 1$ mechanism.
View full question & answer→MCQ 591 Mark
UPAC name of the following compound is
- ✓
3-Bromo-3, 4-dimetbyiheptane
- B
3,4-dimethyl-3-bromoheptane
- C
5-Bromo-4,5-dimethylheptane
- D
4,5-dimethyl-5-bromoheptane
AnswerCorrect option: A. 3-Bromo-3, 4-dimetbyiheptane
3-Bromo-3, 4-dimetbyiheptane
View full question & answer→MCQ 601 Mark
The preparation of alkyl fluoride from alkyl chlor ide, in presence of metallic fluorides is known as
MCQ 611 Mark
Identify the product D in the following sequence of reactions :
MCQ 621 Mark
Carbon tetrachloride is used as
MCQ 631 Mark
But-l-ene on reaction with HCI in the presence of sodium peroxide yields
MCQ 641 Mark
Which of the following carbocations is least stable ?
AnswerCorrect option: C. $CH _3- CH _2-{ }^{+} CH _2$
$CH _3- CH _2-{ }^{+} CH _2$
View full question & answer→MCQ 651 Mark
Chlorobenzene can be obtained by benzene diazonium chloride by
MCQ 661 Mark
The halogen atom in aryl halides is
MCQ 671 Mark
Which of the following groups has highest priority according to R, S convention?
- A
$CH _2 OH$
- B
$COOH$
- C
$COCH _3$
- ✓
$COOCH _3$
AnswerCorrect option: D. $COOCH _3$
$COOCH _3$
View full question & answer→MCQ 681 Mark
Which one of the following alkane is NOT formed in Wurtz reaction ?
MCQ 691 Mark
In which of the following pairs both are nucleophiles ?
- A
$BF _3, AlCl _3$
- B
$NO ^{+}{ }_2, Cl ^{-}$
- ✓
$CN ^{-}, NH _3$
- D
$Br ^{+}, BC1 _3$
AnswerCorrect option: C. $CN ^{-}, NH _3$
$CN ^{-}, NH _3$
View full question & answer→MCQ 701 Mark
The total number of electrons present in the central carbon atom of a free radical is
MCQ 711 Mark
Which one of the following is NOT used to prepare alkyl halide from an alcohol ?
- A
$SOCl _2$
- B
$PC1 _3$
- C
$HC1 + ZnCl _2$
- ✓
$NaCl$
AnswerCorrect option: D. $NaCl$
$NaCl$
View full question & answer→MCQ 721 Mark
The hydrogen halide which does not obey Markownikv rule in presence of peroxide is
MCQ 731 Mark
The optically inactive compound is
MCQ 741 Mark
Carbon atom in methyl carbocation contains how many pairs of electrons?
MCQ 751 Mark
The lowest stability of carbocation among the compounds
MCQ 761 Mark
The number of electrons surrounding the carbon- ium ion is
MCQ 771 Mark
The most reactive alkyl halide towards $SN 2$ reac - tion is
- ✓
$CH _3 X$
- B
$R _3 CX$
- C
$R _2 CHX$
- D
$RCH _2 X$
AnswerCorrect option: A. $CH _3 X$
$CH _3 X$
View full question & answer→MCQ 781 Mark
Which one of the following when heated with metallic sodium will not give the corresponding alkane ?
MCQ 791 Mark
It is difficult to break $C - Cl$ bond in $CH _2= CH - Cl$ due to
View full question & answer→MCQ 801 Mark
Which alkyl halide among the following com $\neg$ pounds has the highest boiling point?
- A
$\left( CH _3\right)_3 CCl$
- B
$CH _3 CH \left( CH _3\right) CH _2 Cl$
- C
$CH _3 CH _2 CH _2 CH _2 Cl$
- ✓
$CH _3 CH \left( CH _3\right) CH _2 Cl$
AnswerCorrect option: D. $CH _3 CH \left( CH _3\right) CH _2 Cl$
$CH _3 CH \left( CH _3\right) CH _2 Cl$
View full question & answer→MCQ 811 Mark
The weakest C-Cl bond is present in
MCQ 821 Mark
In its nucleophilic substitution reaction, aryl halide resembles
MCQ 831 Mark
The geometry of carbon lum ion is
MCQ 841 Mark
The number of asymmetric carbon atoms in glucose are
MCQ 851 Mark
- A
- B
optically dextro rotatory
- ✓
- D
View full question & answer→MCQ 861 Mark
The order of reactivity in nucleophilic substitution reaction is
- A
$CH _3 F < CH _3 C 1< CH _3 I < CH _3 Br$
- ✓
$CH _3 F < CH _3 C1 < CH _3 Br < CH _3 I$
- C
$CH _3 F < CH _3 Br < CH _3 C1 < CH _3 I$
- D
$CH _3 I < CH _3 Br < CH _3 C 1< CH _3 F$
AnswerCorrect option: B. $CH _3 F < CH _3 C1 < CH _3 Br < CH _3 I$
$CH _3 F < CH _3 C1 < CH _3 Br < CH _3 I$
View full question & answer→MCQ 871 Mark
p, $p ^{\prime}$-dichlorodiphenyl trichloroethane is used as
View full question & answer→MCQ 881 Mark
View full question & answer→MCQ 891 Mark
The above reaction is known as
MCQ 901 Mark
The major product of the following reaction is
MCQ 911 Mark
Which of the following compounds shows optical activity ?
MCQ 921 Mark
Which of the following compounds is not optically active ?
MCQ 931 Mark
A racemic mixture consists of
Answerequal amount of $d$ and I isomers
View full question & answer→MCQ 941 Mark
A compound with the molecular formula $CH _2 OH ( CHOH )_3 CH _2 OH$ has optically active forms
View full question & answer→MCQ 951 Mark
The optically inactive compound is
MCQ 961 Mark
Which of the following characteristic properties of the enantiomers is correct?
- A
The enantiomers possess same physical and chemical properties
- B
The enantiomers are optically active compounds
- C
The enantiomers have different optical rotations
- ✓
View full question & answer→MCQ 971 Mark
View full question & answer→MCQ 981 Mark
The stability order of carbocation is
- A
$2^{\circ}>3^{\circ}>1^{\circ}$
- ✓
$3^{\circ}>2^{\circ}>1^{\circ}$
- C
$3^{\circ}>1^{\circ}>2^{\circ}$
- D
$1^{\circ}>3^{\circ}>2^{\circ}$
AnswerCorrect option: B. $3^{\circ}>2^{\circ}>1^{\circ}$
$3^{\circ}>2^{\circ}>1^{\circ}$
View full question & answer→MCQ 991 Mark
Which of the following is most reactive towards nucleophilic substitution reaction ?
- A
$CH _2= CH - Cl$
- B
$CH _3 CH = CHCl$
- C
$C _6 H _5 Cl$
- ✓
$ClCH _2- CH = CH _2$
AnswerCorrect option: D. $ClCH _2- CH = CH _2$
$ClCH _2- CH = CH _2$
View full question & answer→MCQ 1001 Mark
Which of the following undergoes nucleophilic substitution exclusively by $S_N 2$ mechanism ?
View full question & answer→MCQ 1011 Mark
Which of the following is not a nucleophile?
MCQ 1021 Mark
Which of the following is correct about $S_{ N } 2$ mechanism?
- A
- ✓
Complete inversion of configuration
- C
Formation of carbonium ion
- D
Favoured by polar solvent
AnswerCorrect option: B. Complete inversion of configuration
Complete inversion of configuration
View full question & answer→MCQ 1031 Mark
The one step exothermic reaction is
- A
$S_N 1$
- ✓
$S_N 2$
- C
$S _{ N }$
- D
$S 2_{ N }$
AnswerCorrect option: B. $S_N 2$
$S_N 2$
View full question & answer→MCQ 1041 Mark
In $S _{ N } 2$ reaction, the hydrolysis of alkyl halide shows
- A
the retention of configuration
- ✓
the inversion of configuration
- C
both retention and inversion of configuration
- D
no change in the configuration
AnswerCorrect option: B. the inversion of configuration
the inversion of configuration
View full question & answer→MCQ 1051 Mark
The rate of $S_N 2$ reaction depends on the concentra $\neg$ tion of
- A
- B
- ✓
both the substrate and the reagent
- D
neither the substrate nor the reagent
AnswerCorrect option: C. both the substrate and the reagent
both the substrate and the reagent
View full question & answer→MCQ 1061 Mark
$CH _3- CH = CH _2 \xrightarrow[\text { peroxide }]{ HI }$
The major product of the above reaction is,
- A
$I - CH _2- CH = CH _2$
- ✓
$CH _3- CH _2- CH _2 I$
- C
- D
AnswerCorrect option: B. $CH _3- CH _2- CH _2 I$
$CH _3- CH _2- CH _2 I$
View full question & answer→
