1. ⇒ (MHT CET 2023 12th May Morning Shift )

Identify the product obtained when ethoxybenzene reacts with hot and concentrated $HI$ .

A. Ethyl iodide and Phenol

B. Ethyl alcohol and Phenol

C. Ethyl alcohol and Iodobenzene

D. Ethyl iodide and Iodobenzene

Correct Option is (A)

MHT CET 2023 12th May Morning Shift Chemistry - Alcohol, Phenols and Ethers Question 3 English Explanation

Aryl alkyl ethers have stronger and shorter bond between oxygen and the aromatic ring. Hence, they undergo cleavage of oxygen - alkyl bond and yield phenol and alkyl halide on reaction with $HI$ .

2. ⇒ (MHT CET 2023 12th May Morning Shift )

Which from following compounds is obtained when anisole is heated with dilute sulfuric acid?

A. Phenol and ethanol

B. Phenol and methanol

C. Pyrogallol and methanol

D. Phloroglucinol and ethanol

Correct Option is (B)

Ethers when heated with dilute sulfuric acid under pressure undergo hydrolysis to give alcohols/phenols.

MHT CET 2023 12th May Morning Shift Chemistry - Alcohol, Phenols and Ethers Question 1 English Explanation

3. ⇒ (MHT CET 2023 11th May Morning Shift )

Identify the product obtained when phenol is reacted with dilute nitric acid at low temperature.

A. ortho-Nitrophenol

B. para-Nitrophenol

C. Mixture of ortho and para-nitrophenols

D. 2,4,6-Trinitrophenol

Correct Option is (C)

Phenol reacts with dilute nitric acid at low temperature to give mixture of ortho- and para-nitrophenols.

MHT CET 2023 11th May Morning Shift Chemistry - Alcohol, Phenols and Ethers Question 8 English Explanation

4. ⇒ (MHT CET 2023 10th May Evening Shift )

Identify the solvent used in bromination of phenol to obtain 2,4,6-tribromophenol.

A. Chloroform

B. Water

C. Carbon tetrachloride

D. Carbon disulphide

Correct Option is (B)

Phenol reacts with aqueous solution of bromine to give 2,4,6-tribromophenol.

MHT CET 2023 10th May Evening Shift Chemistry - Alcohol, Phenols and Ethers Question 13 English Explanation

If the bromination of phenol is carried out in a solvent of lower polarity than water, such as ${CS}_{2}, {CHCl}_{3}$ or ${CCl}_{4}$ , a mixture of ortho- and para-bromophenol is formed.

10. ⇒ (MHT CET 2023 10th May Evening Shift )

An organic compound ' $A$ ' on reaction with ${PCl}_{3}$ gives an alkyl chloride having formula $C_{3} H_{7} Cl$ . ' $A$ ' on oxidation with $PCC$ forms an aldehyde having formula $C_{3} H_{6} O$ . Identify ' $A$ '.

A. Propan-1-ol

B. Propan-2-ol

C. Propanoic acid

D. Propanone

Correct Option is (A)

MHT CET 2023 10th May Evening Shift Chemistry - Alcohol, Phenols and Ethers Question 4 English Explanation

Primary alcohols on oxidation form aldehydes. Hence, compound A should be primary alcohol. Therefore, only option (A) is valid.

⇒Alcohol, Phenols and Ethers