Select one which is alcohol.
Correct answer: D. CH3 - CH2 - OH
- 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an alkyl halide (also known as haloalkanes) which are compounds in which one or more hydrogen atoms in an alkane have been replaced by halogen atoms (fluorine, chlorine, bromine or iodine).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.
Last updated
About Alcohols and Phenols
Alcohols are classified as primary, secondary or tertiary and studied through their hydrogen bonding, acidity, oxidation and reactions with active metals, acids and halogenating agents. Phenols require separate treatment because the hydroxyl group is attached to an aromatic ring, making their acidity and electrophilic substitution different from ordinary alcohols.
Practise Alcohols and Phenols
535 free Alcohols and Phenols MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemistry questions like this
Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.