The reagents with which glucose does not react to give the corresponding tests/products areA. Tollen's reagent B. Schiff's reagent C. HCN D. NH_2OH E. NaHSO_3Choose the correct options from the given below:

1. E and D

2. B and C

3. A and D

4. B and E

Doubtly Asked 30 Oct 2026 NEET UG 2024 Practice test neet Save WhatsApp Report

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Answer: 4. B and E

Key idea: glucose exists mostly as the cyclic hemiacetal, so it gives some but not all aldehyde reactions.

Tollens' reagent: reacts (silver mirror).
\(\mathrm{HCN}\): gives cyanohydrin.
\(\mathrm{NH_2OH}\): gives oxime.
Schiff's reagent: no reaction, because the free -CHO is present in very small amount.
\(\mathrm{NaHSO_3}\): no addition product.

So B and E do not react: option 4.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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