The addition compound obtained by reacting acetaldeyhyde and HCN, when hydrolyzed gives:
Correct answer: B. 2-Hydroxypropanoic acid
- A. Ethyl alcohol
- B. 2-Hydroxypropanoic acid
- C. Methyl cyanide
- D. Ethyl cyanide
Explanation
When acetaldehyde and HCN react, they form an addition compound called cyanohydrin. When this compound is hydrolyzed (reacted with water), it produces 2-hydroxypropanenitrile, which can undergo further hydrolysis to yield 2-hydroxypropane, also known as propylene glycol.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Aldehydes and Ketones
Aldehydes and ketones contain the polar carbonyl group, but aldehydes are generally more readily oxidised and more reactive than ketones. Coverage includes preparation by oxidation or reduction routes, nucleophilic addition of reagents such as hydrogen cyanide and bisulfite, and tests that distinguish aldehydes from ketones.
Practise Aldehydes and Ketones
679 free Aldehydes and Ketones MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Aldehydes and Ketones questions
Propanone does not undergo:
Which of the following reagents react in same maner with HCHO, CH3CH and CH3COCH3:
Formalin is used as:
The reagent used to distinguish between ethanal and propanal is:
Which of the following gives positive haloform test and positive Fehling solution test
When calcium formate and calcium acetate are dry heated they form: