Tag: aldehydes, ketones and carboxylic acids

Quizzes (4) Questions (20)

Questions Related to aldehydes, ketones and carboxylic acids

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

Formaldehyde is used :

  1. for preserving biological specimens

  2. for the preparation of urotropine

  3. in the manufacture of bakelite

  4. all of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Formaldehyde is used for preserving specimens for the preparation of Urotropine and in manufacture of Bakelite.

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

Benzaldehyde is used:

  1. as a flavouring agent for food

  2. in the manufacture of triphenylmethane dyes like malachite green

  3. as a starting material for the preparation of cinnamic acid

  4. all of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Benzaldehyde is used as flavoring agent, manufacture of dyes like triphenylmethane dyes and also as starting material for the preparation of cinnamic acid.

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 statement is true?

  1. Benzaldehyde is used in perfumery industry

  2. Formaldehyde is used for silvering mirrors

  3. Acetone is used as a commercial solvent

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
A. Benzaldehyde is used in perfumery
B. Formaldehyde is used for silvering mirrors because of its aldehydic group.
C. Acetone is used as a commercial solvent for the various organic compound.
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 can be used as a solvent for cellulose acetate, cellulose nitrate, and celluloide?

  1. Formaldehyde

  2. Acetaldehyde

  3. Acetic acid

  4. Acetone
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Acetone is most used industrial solvent, for many synthetic fibers. It is good solvent for synthetic fibres as it is denaturant and it reduces explosive reactions.
Multiple choice chemistry aldehydes, ketones and carboxylic acids uses of aldehydes and ketones organic compounds with functional group containing oxygen (part-2) carbonyl compounds

Acetone is used:

  1. for extraction of essential oils

  2. as a constituent of liquid nail polish

  3. both A and B

  4. none of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Acetone is used for extraction of essential oils and a constituent of liquid nail polish. Also. It is used in perfumes as it causes aroma.

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

Butyraldehyde are produced commercially by:

  1. hydroformylation

  2. hydroacetylation

  3. formylation

  4. acetylation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Hydroformylation is an industrial process for the formation aldehydes from Alkenes also called as oxo-synthesis
Butyraldehyde also produced commercially from Hydroformylation.