Reducing agent which attack carbonyl compound in NaBH4 is
Correct answer: B. H-
- A. H
- B. H-
- C. H+
- D. H2
Explanation
H-: This represents a hydride ion (H⁻), which is the active reducing species in sodium borohydride (NaBH₄). NaBH₄ is a mild reducing agent commonly used to reduce aldehydes and ketones to their respective alcohols. The hydride ion (H⁻) donates electrons to the carbonyl carbon, leading to the reduction of the carbonyl group.
Last updated
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.
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.