MCQ
Aldehydes and ketones give addition reaction with
- AHydrazine
- BPhenyl hydrazine
- CSemicarbazide
- ✓Hydrogen cyanide

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$\mathrm{N}_{2}(\mathrm{g})+3 \mathrm{H}_{2}(\mathrm{g}) \rightleftharpoons 2 \mathrm{NH}_{3}(\mathrm{g})$
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