Bulky ketones do not react with
Correct answer: A. Sodium bisulphite
- A. Sodium bisulphite
- B. HCl
- C. Grignard reagent
- D. HCN
Explanation
The correct answer is Sodium bisulphite. Bulky ketones do not react easily with sodium bisulphite due to steric hindrance. The bulky groups in the ketones prevent the bisulphite ion from effectively approaching and reacting with the carbonyl carbon. In contrast, HCl can protonate the carbonyl oxygen, Grignard reagents can overcome steric effects due to their high reactivity, and HCN can still add to the carbonyl group to form cyanohydrins despite steric hindrance.
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
For aldol condensation, carbonyl system must have _.
Which of the following compound does not give cannizzaro reaction?
Which of the following reaction of carbonyl system is used to distinguish between carbonyl system from alcohols?
The Addition of Hydrogen cyanide to Formaldehydes gives which product?
In IUPAC nomenclature, ketones are named as _.
By the oxidation of symmetrical ketone, which of the following products are formed?