alleryNitro compounds are reduced to amines by hydrogen gas in the presence of which metals?
ANeon, palladium, phosphorus
BNitrogen, potassium, platinum
CNickel, palladium, platinum
DNickel, potassium, plutonium
Answer & Solution
Correct answer: C. Nickel, palladium, platinum
1. Catalytic hydrogenation needs a finely divided metal catalyst.
2. Three metals are named for this reduction.
3. Nitro compounds are reduced to amines by hydrogen gas in the presence of finely divided nickel, palladium or platinum.
4. Reduction with metals in acidic medium also works.
_Source: syllabus Chemistry Part II, Ch 9 'Amines'_
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