Tag: organic compounds with functional group containing oxygen (part-2)

Quizzes (3) Questions (18)

Questions Related to organic compounds with functional group containing oxygen (part-2)

Multiple choice chemistry aldehydes, ketones and carboxylic acids uses of aldehydes and ketones organic compounds with functional group containing oxygen (part-2) carbonyl compounds

Which of the following aldehyde is very much used in perfumery and in dye industries?

  1. Formaldehyde

  2. Acetaldehyde

  3. Benzaldehyde

  4. Butyraldehyde
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Benzaldehyde is much used perfumery industries because it has bitter almond odor and also it is used for making aniline dye.
Multiple choice chemistry aldehydes, ketones and carboxylic acids uses of aldehydes and ketones organic compounds with functional group containing oxygen (part-2) carbonyl compounds

Which of the following does not uses formaldehyde in its preparation?

  1. Melamine polymer

  2. Bakelite

  3. PHBV

  4. preservation of biological specimens
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Formaldehyde is not used in the preparation of PHBV. PHBV is a thermoplastic polymer. The monomers, 3-hydroxybutanoic acid and 3-hydroxypentanoic acid, are joined by ester bonds; the back bone of the polymer is made up of carbon and oxygen atoms.

Multiple choice chemistry aldehydes, ketones and carboxylic acids uses of aldehydes and ketones organic compounds with functional group containing oxygen (part-2) carbonyl compounds

A major constituent of vinegar is:

  1. Methanoic acic

  2. Benzoic acid

  3. Ethanoic acid

  4. Picric acid
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The main constituent of vinegar is acetic acid. The other constituents will depend on the nature of the raw material that has undergone fermentation.

Hence, option $C$ is correct.

Multiple choice chemistry aldehydes, ketones and carboxylic acids uses of aldehydes and ketones organic compounds with functional group containing oxygen (part-2) carbonyl compounds

Which of the following doesn't use acetaldehyde as a starting material in its preparation?

  1. Ethyl acetate

  2. Ethanoic acid

  3. Methanoic acid

  4. Drugs
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Methanoic acid needs only single carbon compound  not acetaldehyde.
$HCOOH$-formic acid/Methanoic acid.