Question 12 Marks
Arrange O – H, C – H and N – H bonds in increasing order of their bond polarity.
Answer
View full question & answer→Increasing order of polarity :C – H, N – H, O – H
Questions
Answer the following in one or two sentence.
Take a timed test
60 questions · self-marked practice — reveal the answer and mark yourself.
Question 22 Marks
Give the reagents and conditions necessary to prepare phenol from
a. Chlorobenzene
b. Benzene sulfonic acid.
a. Chlorobenzene
b. Benzene sulfonic acid.
Answer
View full question & answer→(1) From chlorobenzene : Reagents required : NaOH and dil. HC1 Temperature : 623 K, Pressure : 150 atm
(2) From Benzene sulphonic acid : Reagents required : aq NaOH, caustic soda, dil. HC1 Temperature : 573 K
(2) From Benzene sulphonic acid : Reagents required : aq NaOH, caustic soda, dil. HC1 Temperature : 573 K
Question 32 Marks
a. 3-Methoxyhexane
b. Methyl vinyl ether
c. 1-Ethylcyclohexanol
d. Pentane-1,4-diol
e. Cyclohex-2-en-1-ol
b. Methyl vinyl ether
c. 1-Ethylcyclohexanol
d. Pentane-1,4-diol
e. Cyclohex-2-en-1-ol
Question 42 Marks
Draw structures of following compounds:
(i) 2,5-DiethIphenoI
(ii) Prop-2-en-I-oI
(iii) 2-methoxypropane
(iv) Phenylmethanol
(i) 2,5-DiethIphenoI
(ii) Prop-2-en-I-oI
(iii) 2-methoxypropane
(iv) Phenylmethanol
Question 52 Marks
Name t-butyl alcohol using carbinol system of nomenclature.
Answer
View full question & answer→Trimethyl carbinol.
Question 62 Marks
Write name of the electrophile used in Kolbe’s Reaction.
Answer
View full question & answer→Electrophile : Carbon dioxide (O = C = O)
Question 72 Marks
Write the structure of optically active alcohol having molecular formula $C_4H_{10}O$
View full question & answer→Question 82 Marks
Write the IUPAC name of alcohol having molecular formula $C_4H_{10}O$ which is resistant towards oxidation.
View full question & answer→Question 92 Marks
Hydroboration-oxidation of propene gives…..
Answer
View full question & answer→n-propyl alcohol $(CH_3 – CH_2 – CH_2 – OH)$
Question 102 Marks
Write the name of reactant used for preparation of phenol, which gives byproduct used as solvent.
Answer
View full question & answer→Reactant used in the preparation of phenol :
Question 112 Marks
How will you affect the following two-step conversions? Diethyl ether into n-butane :
Answer
View full question & answer→$C _2 H _5- O - C _2 H _5+\underset{\text { conc (excess) }}{2 HI } \xrightarrow{\Delta} \underset{\text { Ethyl iodide }}{2 C _2 H _5 I + H _2 O }$
$\underset{\text { Ethyl iodide }}{ C _2 H _5 I + Na + C _2 H _5 I } \xrightarrow[\text { (Wurtz reaction) }]{\text { dry ether }} \underset{n \text {-Butane }}{ C _4 H _{10}}+ NaI$
$\underset{\text { Ethyl iodide }}{ C _2 H _5 I + Na + C _2 H _5 I } \xrightarrow[\text { (Wurtz reaction) }]{\text { dry ether }} \underset{n \text {-Butane }}{ C _4 H _{10}}+ NaI$
Question 122 Marks
An organic compound with the formula $C _4 H _{10} O _3$ shows properties of ether and alcohol. When treated with an excess of $HBr$ yields only one compound 1,2 dibromomethane. Write structural formula of ether and that of alcohol.
Answer
View full question & answer→ When $C _4 H _{10} O _3$ is treated with excess of $HBr$, a single compound 1,2-dibromoethane is formed.
$HO - CH _2- CH _2- O - CH _2- CH _2- OH +\underset{\text { excess }}{4 HBr } \longrightarrow \underset{\text { 1, 2-dibromoethane }}{2 Br - CH _2- CH _2- Br +3 H _2 O }$
$\therefore$ The structural formula of $C _4 H _{10} O _3$ is $HO - H _2 C - CH _2- O - CH _2- CH _2- OH$
$HO - CH _2- CH _2- O - CH _2- CH _2- OH +\underset{\text { excess }}{4 HBr } \longrightarrow \underset{\text { 1, 2-dibromoethane }}{2 Br - CH _2- CH _2- Br +3 H _2 O }$
$\therefore$ The structural formula of $C _4 H _{10} O _3$ is $HO - H _2 C - CH _2- O - CH _2- CH _2- OH$
Question 132 Marks
Describe the action of cone. $HNO_3$ on anisole.Write the equation of nitration of anisole.
Answer
View full question & answer→When anisole is reacted with nitrating mixture $($cone. $HNO _3+$ cone. $Fl _2 SO _4 ),$ a mixture of $p$ nitroanisole and $o-$nitroanisole is obtained.
Question 142 Marks
Describe the action of Acetyl chloride on anisole (Friedel-Crafts acylation).###Write the equation of the reaction Friedel-Crafts acylation of anisole.###Write a note on Friedel-Crafts acylation.
Answer
View full question & answer→When anisole is treated with acetyl chloride in the presence of anhydrous aluminium chloride (a Lewis acid), 4-Methoxy acetophenone (major product) is obtained. The acetyl groups are introduced at -ortho and -para positions in anisole, the reaction is known as Friedel Craft’s acylation reaction.
Question 152 Marks
Describe the action of methyl chloride on anisole (Friedel-Crafts reaction).###Write the equation of Friedel-Crafts reaction-alkylation of anisole.
Answer
View full question & answer→When anisole is treated with alkyl halide in the presence of anhydrous aluminium chloride (a Lewis acid) as catalyst, 4-Methoxy toluene is formed as major product. The alkyl groups are introduced at -ortho and -para positions in anisole, the reaction is known as Friedel-Crafts alkylation reaction.
Question 162 Marks
Describe the action of bromine in acetic acid on anisole.###Write the equation of the reaction of bromination of anisole in ethanoic acid medium.
Answer
View full question & answer→When anisole is treated with bromine in acetic acid, /i-bromoanisole (major product) is obtained.
Question 172 Marks
Draw the resonance structures of aromatic ethers.
Answer
View full question & answer→The alkoxy group in aromatic ether is a ring activating and ortho-, paradirecting group toward electrophilic aromatic substitution.
Resonance structures :
$+R$ Effect of - OR group results in increased electron density at the para- and two orthoposotions (see resonance structures II, III and IV).
Resonance structures :
$+R$ Effect of - OR group results in increased electron density at the para- and two orthoposotions (see resonance structures II, III and IV).
Question 182 Marks
Describe the action of hydroiodic acid on the following :
Methyl phenyl ether (anisole).
Methyl phenyl ether (anisole).
Answer
View full question & answer→When methyl phenyl ether (anisole) is treated with hydroiodic acid, phenol and methyl iodide is formed. Here, phenol does not react further with $HI$ because $- OH$ group is attached to $sp ^2$ hybridised carbon atom and it cannot be replaced by iodide (nucleophile).
Question 192 Marks
Describe the action of hydroiodic acid on the following :
Methyl n-propyl ether.
Methyl n-propyl ether.
Answer
View full question & answer→When methyl n-propyl ether (1-Methoxy propane) is treated with hydroiodic acid, a mixture of n-propyl alcohol and methyl iodide is formed.
If excess of hydroiodic acid is available then n-propyl alcohol further reacts with hydroiodic acid at higher temperature to form n-propyl iodide and water.
If excess of hydroiodic acid is available then n-propyl alcohol further reacts with hydroiodic acid at higher temperature to form n-propyl iodide and water.
Question 202 Marks
Describe the action of hydroiodic acid on the following :
Ethyl methyl ether.
Ethyl methyl ether.
Answer
View full question & answer→When ethyl methyl (methoxy ethane) is treated with hydroiodic acid, a mixture of ethyl alcohol and methyl iodide is formed.
If excess of hydroiodic acid is available, then ethyl alcohol further reacts with hydroiodic acid at higher temperature to form ethyl iodide and water.
$C _2 H _5 OH + HI \longrightarrow \underset{\text { Ethyl iodide }}{ C _2 H _5 I + H _2 O }$
If excess of hydroiodic acid is available, then ethyl alcohol further reacts with hydroiodic acid at higher temperature to form ethyl iodide and water.
$C _2 H _5 OH + HI \longrightarrow \underset{\text { Ethyl iodide }}{ C _2 H _5 I + H _2 O }$
Question 212 Marks
Describe the action of hydroiodic acid on the following :
Diethyl ether.
Diethyl ether.
Answer
View full question & answer→When diethyl ether (ethoxy ethane) is treated with hydroiodic acid, a mixture of ethanol and ethyl iodide is formed.
$\begin{array}{ll} C _2 H _5- O - C _2 H _5+ HI \longrightarrow & C _2 H _5- OH +\underset{2}{ } C _2 H _5- I \\ \text { Diethyl ether } & \text { Ethanol } \quad \text { Ethyl iodide }\end{array}$
If excess of hydroiodic acid is available, then ethyl alcohol further reacts with hydroiodic acid at higher temperature to form ethyl iodide and water.
$\underset{\text { Ethanol }}{ C _2 H _5- OH + HI \longrightarrow} \underset{\text { Ethyl iodide }}{ C _2 H _5 I + H _2 O }$
$\begin{array}{ll} C _2 H _5- O - C _2 H _5+ HI \longrightarrow & C _2 H _5- OH +\underset{2}{ } C _2 H _5- I \\ \text { Diethyl ether } & \text { Ethanol } \quad \text { Ethyl iodide }\end{array}$
If excess of hydroiodic acid is available, then ethyl alcohol further reacts with hydroiodic acid at higher temperature to form ethyl iodide and water.
$\underset{\text { Ethanol }}{ C _2 H _5- OH + HI \longrightarrow} \underset{\text { Ethyl iodide }}{ C _2 H _5 I + H _2 O }$
Question 222 Marks
What is the action of hot HI on isopropyl methyl ether?
Answer
View full question & answer→When isopropyl methyl ether is treated with excess of hot hydroiodic acid, a mixture of isopropyl iodide and methyl iodide is formed.
Question 232 Marks
What is the action of atmospheric oxygen on diethyl ether?
Answer
View full question & answer→When atmospheric oxygen combines with diethyl ether, peroxide of diethyl ether is obtained.
Question 242 Marks
Explain laboratory test for ethers.
Answer
View full question & answer→Ethers are neutral compounds in aqueous medium. Ethers do not react with bases, cold dilute acids, reducing agents, oxidizing agents and active metals. However, ethers dissolve in cold concentrated $H _2 SO _4$ due to formation of oxonium salts.
This property distinguishes ethers from hydrocarbons.
This property distinguishes ethers from hydrocarbons.
Question 252 Marks
Explain, the solubility/miscibility of ethers in water is similar to that of alcohols of comparable molecular mass.
Answer
View full question & answer→The solubility/miscibility of ethers in water is similar to that of alcohols of comparable molecular mass. This is because ethers can form hydrogen bonds with water through ethereal oxygen.
For example, diethyl ether and $n$-butyl alcohol have respective miscibilities of 7.5 and $9 g$ per 100 $g$ of water.
For example, diethyl ether and $n$-butyl alcohol have respective miscibilities of 7.5 and $9 g$ per 100 $g$ of water.
Question 262 Marks
Explain, ethers posses a small net dipole moment.
Answer
View full question & answer→In ethers, 
bond angle is 110° and not 180°, bond dipole moments of the two C – O bonds do not cancel each other, therefore, ethers possess a smal net dipole moment, (for example, dipole moment of diethyl ether is 1.18 D)
bond angle is 110° and not 180°, bond dipole moments of the two C – O bonds do not cancel each other, therefore, ethers possess a smal net dipole moment, (for example, dipole moment of diethyl ether is 1.18 D)Question 272 Marks
How is anisole obtained from phenol?###How is methoxy benzene prepared from carbolic acid?
Answer
View full question & answer→Phenol reacts with sodium hydroxide, sodium phenoxide is formed. When sodium phenoxide is heated with methyl iodide, anisole is obtained.
Question 282 Marks
How is diethyl ether (ethoxyethane) obtained from alcohol?
Answer
View full question & answer→When excess of ethyl alcohol is distilled with concentrated sulphuric acid $\left( H _2 SO _4\right)$ at $413 K$, diethyl ether is formed.
$2 C _2 H _5 OH \xrightarrow[413 K ]{\text { Conc. } H _2 SO _4} \underset{\substack{\text { Ethexyethane } \\ \text { (diethyl ether) }}}{ C _2 H _5- O - C _2 H _5+ H _2 O }$
$2 C _2 H _5 OH \xrightarrow[413 K ]{\text { Conc. } H _2 SO _4} \underset{\substack{\text { Ethexyethane } \\ \text { (diethyl ether) }}}{ C _2 H _5- O - C _2 H _5+ H _2 O }$
Question 292 Marks
Explain catalytic hydrogenation of phenol.
Answer
View full question & answer→When a mixture of vapours of phenol and hydrogen is passed over nickel catalyst at 433 K., cyclohexanol is obtained.
Question 302 Marks
Explain the action of chromic acid on phenol.###How is phenol converted into benzoquinone?
Answer
View full question & answer→When phenol is oxidised by chromic acid, a diketone, p-benzoquinone is formed. It is a conjugated diketone.
Question 312 Marks
Explain the action of concentrated sulphuric acid on phenol at different temperatures.
Answer
View full question & answer→(a) At room temperature : When phenol is treated with cone. $H _2 SO _4$ at room temperature (about $300 K$ ), o-phenol sulphonic acid is formed.
(b) At $373 K$ : When phenol is treated with cone. $H _2 SO _4$ at about $373 K$, p-phenol sulphonic acid is formed.
(b) At $373 K$ : When phenol is treated with cone. $H _2 SO _4$ at about $373 K$, p-phenol sulphonic acid is formed.
Question 322 Marks
Explain the action of cone, nitric acid (nitrating mixture) on phenol (carbolic acid).###How is phenol converted into picric acid?
Answer
View full question & answer→When phenol is warmed with a mixture of cone, nitric acid and cone, sulphuric acid (a nitrating mixture or the mixed acid), 2, 4, 6 – trinitrophenol, commonly called picric acid, is formed.
Question 332 Marks
Explain the action of dilute nitric acid on phenol $($carbolic acid$).$Give equation of the reaction of dilute $HNO_3$ with phenol.
Answer
View full question & answer→When phenol is treated with dilute nitric acid, a mixture of $o-$nitrophenol and $p-$nitrophenol is formed. In this reaction, $p-$nitrophenol is formed as the major product.
Question 342 Marks
Explain the action of bromine water on phenol (carbolic acid).###Name the reagent used in the bromiriation of phenol to 2, 4, 6 tribromophenol.
Answer
View full question & answer→When phenol is treated with bromine water, a yellowish white precipitate of 2, 4, 6 – tribromophenol is formed.
Question 352 Marks
Explain the action of bromine in carbon disulphide $\left( CS _2\right)$ on phenol (carbolic acid).###Give equation of the reaction of bromine in $CS _2$ with phenol.
Answer
View full question & answer→When phenol is stirred at a low temperature with bromine dissolved in a polar solvent such as carbon disulphide or $CCl _4$ at ( $273 K$ ), a mixture of o-bromophenol and p-bromophenol is formed, p-bromophenol is the major product.
Question 362 Marks
Explain oxidation of primary and secondary alcohols.
Answer
View full question & answer→(1) Primary alcohol on oxidation with $CrO _3$ forms aldehyde. However, a better reagent to bring about this oxidation is PCC (pyridinium chlorochromate).
(2) Secondary alcohol on oxidation with chromic anhydride $\left( CrO _3\right)$ forms ketone.
(2) Secondary alcohol on oxidation with chromic anhydride $\left( CrO _3\right)$ forms ketone.
Question 372 Marks
Describe the action of $SOCl_2$ on
$(1)$ ethanol $(2)$ propan$-l-ol.$
$(1)$ ethanol $(2)$ propan$-l-ol.$
Answer
View full question & answer→$(1)$ Ethanol : When ethanol is treated with $SOCl _2$ in the presence of pyridine, ethyl chloride is obtained.
$CH _3- CH _2- OH + SOCl _2 \longrightarrow CH _3- CH _2- Cl + SO _2+ HCl$
Ethanol Ethyl Chloride
$(2)$ Propan$-l-ol :$ When propan$-l-ol$ is treated with $SOCl_2$ in the presence of pyridine, $w-$propyl chloride is obtained.
$CH _3- CH _2- OH + SOCl _2 \longrightarrow CH _3- CH _2- Cl + SO _2+ HCl$
Ethanol Ethyl Chloride
$(2)$ Propan$-l-ol :$ When propan$-l-ol$ is treated with $SOCl_2$ in the presence of pyridine, $w-$propyl chloride is obtained.
Question 382 Marks
Describe the action of $PCl_5$ on
$(1)$ ethanol
$(2)$ propan$-2-ol.$
$(1)$ ethanol
$(2)$ propan$-2-ol.$
Answer
View full question & answer→$(1)$ Ethanol : When ethanol is treated with $PCl_5,$ ethyl chloride is obtained.
$(2)$ Propan$-2-ol :$ When propan$-2-ol$ is treated with $PCl_5, 2-$chloropropane is obtained.
$(2)$ Propan$-2-ol :$ When propan$-2-ol$ is treated with $PCl_5, 2-$chloropropane is obtained.
Question 392 Marks
Explain the action of hydroiodic acid on the following :
(1) Propan-2-ol
(2) 3-Methyl butan-2-ol.
(1) Propan-2-ol
(2) 3-Methyl butan-2-ol.
Answer
View full question & answer→(1) Propan-2-ol : When propan-2-ol is heated with hydroiodic acid, 2-iodopropane is formed.
(2) 3-Methyl butan-2-ol : When 3-Methyl butan-2-ol is heated with hydroiodic acid, 2-Iodo-2-methyl butane is obtained. Here, secondary alcohol is converted into a tertiary alkyl halide.
(2) 3-Methyl butan-2-ol : When 3-Methyl butan-2-ol is heated with hydroiodic acid, 2-Iodo-2-methyl butane is obtained. Here, secondary alcohol is converted into a tertiary alkyl halide.
Question 402 Marks
What is the action of acetic anhydride on salicyclic acid?
Answer
View full question & answer→When acetic anhydride is treated with salicyclic acid in presence of glacial acetic acid, acetyl salicyclic acid (aspirin) is obtained.
Aspirin is a common analgesic, antipyretic drug. Reactions involving breaking of C – O bond of alcohol :
Aspirin is a common analgesic, antipyretic drug. Reactions involving breaking of C – O bond of alcohol :
Question 412 Marks
What is Lucas reagent? What are its uses?
Answer
View full question & answer→Lucas reagent is composed of a mixture of concentrated $HCl$ and Lewis acid. anhydrous $ZnCl _2$.
It is used to prepare alkyl chlorides and distinguish between $10,2^{\circ}$ and $3^{\circ}$ alcohols.
It is used to prepare alkyl chlorides and distinguish between $10,2^{\circ}$ and $3^{\circ}$ alcohols.
Question 422 Marks
Explain the action of sodium on ethanol.
Answer
View full question & answer→When cthanol is treated with sodium metal, sodium ethoxide is formed and hydrogen gas is liberated.
$\underset{\text { Ethanol }}{2 CH _3- CH _2- OH +2 Na \longrightarrow} \underset{\text { Sodium ethoxide }}{2 CH _3- CH _2- ONa + H _2 \uparrow}$
Liberation of $H _2$ gas is used to detect the presence of alcoholic $- OH$ group of a molecule.
$\underset{\text { Ethanol }}{2 CH _3- CH _2- OH +2 Na \longrightarrow} \underset{\text { Sodium ethoxide }}{2 CH _3- CH _2- ONa + H _2 \uparrow}$
Liberation of $H _2$ gas is used to detect the presence of alcoholic $- OH$ group of a molecule.
Question 432 Marks
Write the action of aq NaOH on phenol and the product obtained is acidified.
Answer
View full question & answer→Phenols dissolve in aqueous NaOH by forming water soluble sodium phenoxide and are reprecipitated/ regenerated as phenols on acidification with HC1.
Question 442 Marks
Explain laboratory test of alcohols and phenols.
Answer
View full question & answer→Laboratory test : Aqueous solution of alcohols and phenols can be tested with litmus paper. Aqueous solution of alcohols is neutral to litmus (neither blue nor red litmus change colour). Aqueous solutions of phenols turn blue litmus red. Thus, phenols have acidic character.
Question 452 Marks
Draw intramolecular hydrogen bonding structures in the following compounds :
(a) o-nitrophenol
(b) o-hydroxy benzoic acid.
(a) o-nitrophenol
(b) o-hydroxy benzoic acid.
Answer
View full question & answer→(a) o-nitrophenol :
(b) o-hydroxy benzoic acid:
(b) o-hydroxy benzoic acid:
Question 462 Marks
Answer
View full question & answer→In p-nitrophenol, nitro group ( $NO2$ ) is an electron-withdrawing group present at ortho position which enhances the acidic strength ( -1 effect). The $O - H$ bond is under strain and release of proton $\left( H ^{+}\right)$becomes easily. Hence, o-nitrophenol is more acidic than phenol.
Question 472 Marks
Answer
View full question & answer→Due to high electronegativity of $sp ^2$-hybridized carbon, electron density on oxygen in phenol (I) decreases. This increases the polarity of $O - H$ bond and results in more ionization of phenol than that of cyclohexyl alcohol (II). Therefore, phenol is more acidic than cyclohexyl alcohol.
Question 482 Marks
1-Phenyl ethanol from acelaldehyde.
Question 492 Marks
CycIoheyImethanoI from a Grignard reagent.
Question 502 Marks
2-Ntethylbutan-1-oI from an alkene.
Question 512 Marks
Using Grignard reagent, suggest synthesis of following alcohols from aldehydes or ketones. Wherever possible, suggest more than one combination.
Question 522 Marks
Using Grignard reagent, suggest synthesis of following alcohols from aldehydes or ketones. Wherever possible, suggest more than one combination.
Question 532 Marks
Using Grignard reagent, suggest synthesis of following alcohols from aldehydes or ketones. Wherever possible, suggest more than one combination.
$CH _3- CH _2- CH _2- OH$
View full question & answer→$CH _3- CH _2- CH _2- OH$
Question 542 Marks
Using Grignard reagent, suggest synthesis of following alcohols from aldehydes or ketones. Wherever possible, suggest more than one combination.
Question 552 Marks
How is Crotoflyl alcohol obtained from crotonaldehyde?
Answer
View full question & answer→When crotonaldehyde is reduced in the presence of lithium aluminium hydride, the produc obtained is hydrolysed to give crotonyl alcohol. Here. $LiA1H_4$ does not reduce carbon$-$carbon double bond.
Question 562 Marks
How is ethanol prepared using diborane?
Answer
View full question & answer→When diborane is treated with ethene in the presence of THF an addition product triethylborane is formed.Triethylborane is then oxidised with hydrogen peroxide to form ethyl alcohol.
Question 572 Marks
How are following compounds prepared from alkyl halides using moist silver oxide?
(1) Ethanol
(2) Propan-2-ol.
(1) Ethanol
(2) Propan-2-ol.
Answer
View full question & answer→(1) Bromoethane $\left( C _2 H _5 Br \right)$ when boiled with moist $Ag _2 O$ undergoes hydrolysis and forms $C _2 H _5 OH$.
(2) When 2-chloropropane is boiled with moist Ag20, propan-2-ol is formed.
(2) When 2-chloropropane is boiled with moist Ag20, propan-2-ol is formed.
Question 582 Marks
How is alkyl halide converted into alcohol by using
(1) Aqueous $NaOH$ (or $KOH$ ),
(2) Moist silver oxide?
(1) Aqueous $NaOH$ (or $KOH$ ),
(2) Moist silver oxide?
Answer
View full question & answer→(1) When an alkyl halide ( $R-X$ ), is boiled with aqueous $NaOH$ (or $KOH$ ) an alcohol is obtained,
$\begin{aligned}
& R - X + NaOH \xrightarrow[( aq )]{\text { boil }} R - OH + NaX \\
& (R-X+K O H \underset{(a q)}{\text { boil }} R-O H+K X)
\end{aligned}$
(2) Alkyl halide when heated with moist $Ag _2 O$, undergoes hydrolysis and forms an alcohol.
$\begin{aligned}
& Ag _2 O + H _2 O \longrightarrow 2 AgOH \\
& R - X + AgOH \xrightarrow{\Delta} R - OH + AgX
\end{aligned}$
$\begin{aligned}
& R - X + NaOH \xrightarrow[( aq )]{\text { boil }} R - OH + NaX \\
& (R-X+K O H \underset{(a q)}{\text { boil }} R-O H+K X)
\end{aligned}$
(2) Alkyl halide when heated with moist $Ag _2 O$, undergoes hydrolysis and forms an alcohol.
$\begin{aligned}
& Ag _2 O + H _2 O \longrightarrow 2 AgOH \\
& R - X + AgOH \xrightarrow{\Delta} R - OH + AgX
\end{aligned}$
Question 592 Marks
What is phenol? ### Define carbolic acid.
Answer
View full question & answer→The hydroxy derivative of benzene in which the OH group is directly attached to benzene ring is called phenol.
Question 602 Marks
What are phenols (carbolic acids)?
Answer
View full question & answer→Hydroxy derivatives of aromatic hydrocarbons in which the hydroxyl group is directly attached to the aromatic ring are called phenols.
Examples:
Examples: