search

mMCQ.

Navigation Menu

Step into mMCQ.

Launch mMCQ. diagnostic

Explore mMCQ.

MDCAT prepFree DiagnosticPricing & SubscribeSign in

Resources

Terms & Conditions

mMCQ.

© 2021 - 2025 mMCQ.All rights reserved.

  1. Home
  2. MDCAT
  3. Chemistry
  4. Alcohols, Phenols and Ether
MDCAT
Chemistry
2018

Chemistry · Alcohols, Phenols and Ether

Work through this past-paper style MCQ, then read the full explanation. Practice more chemistry questions on mMCQ with adaptive drills and topic analytics.

Question

Select one which is alcohol.

Options
  • A

    CH3 - CH2 - Br

  • B

    CH3 - O - CH3

  • C

    CH3COOH

  • D

    CH3 - CH2 - OH

Explanation

An alcohol is an organic compound that carries at least one hydroxyl functional group (−OH) bound to a saturated carbon atom, hence CH3-CH2-OH is an alcohol.

CH3-CH2-Br is an example of an alkyl halide (also known as haloalkanes) which are compounds in which one or more hydrogen atoms in an alkane have been replaced by halogen atoms (fluorine, chlorine, bromine or iodine).

Ethers are a class of organic compounds that contain an ether group—an oxygen atom connected to two alkyl or aryl groups. They have the general formula R–O–R′, where R and R′ represent the alkyl or aryl groups. Therefore CH3-O-CH3 is an ether.

CH3COOH is a carboxylic acid that is an organic acid which contains a carboxyl group (C(=O)OH) attached to an R-group. The general formula of a carboxylic acid is R–COOH, with R referring to the alkyl, alkenyl, aryl, or other group.

CH3-CH2-Br is an example of an alkyl halide (also known as haloalkanes) which are compounds in which one or more hydrogen atoms in an alkane have been replaced by halogen atoms (fluorine, chlorine, bromine or iodine).

Ethers are a class of organic compounds that contain an ether group-an oxygen atom connected to two alkyl or aryl groups. They have the general formula R-O-R', where R and R' represent the alkyl or aryl groups. Therefore CH3-O-CH3 is an ether. 

CH3COOH is a carboxylic acid that is an organic acid which contains a carboxyl group (C(=O)OH) attached to an R- group. The general formula of a carboxylic acid is R-COOH, with R referring to the alkyl, alkenyl, aryl, or other group.

An alcohol is an organic compound that carries at least one hydroxyl functional group (-OH) bound to a saturated carbon atom, hence CH3-CH2-OH is an alcohol.

Keep practising Chemistry

Take the free 2 minutes diagnostic to map weak topics, then unlock full Biology, Chemistry, Physics, English, and Reasoning practice for PKR 15,000/month.

Start free diagnosticExplore MDCAT

Tagged under Chemistry · Alcohols, Phenols and Ether · 2018