The mildest reducing agent which reduces only carbonyl group in presence of nitro, carbonyl, double bond and ester groups is

Options :
  1. LiAlh4
  2. Na-NH3
  3. H2-Ni
  4. NaBH4
Answer and Explanation :-

Answer: Option 4

Explanation:

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So much for endings. Beginnings are always more fun. True connoisseurs, however, are known to favor the stretch in between, since it's the hardest to do anything with. That's about all that can be said for plots, which anyway are just one thing after another, a what and a what and a what.
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