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MDCAT
Chemistry
2016

Chemistry · Aldehydes and Ketones

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Question

It is the general formula of:

MDCAT Chemistry question — Aldehydes and Ketones
Options
  • A

    2, 4-Dinitrophenyl hydrazine

  • B

    1, 3-Dinitrophenyl hydrazone

  • C

    Phenyl hydrazone

  • D

    2, 4-Dinitrophenyl hydrazone

Explanation

Hydrazone consists of a carbon-nitrogen double bond, i.e., R1R2C=NNH2. In Phenyl hydrazone, one H atom of hydrazone is replaced by a phenyl ring. Now if we attach two nitro groups at positions 2 and 4, as given in the question, the product we have is 2,4-nitrophenyl hydrazine.

It is hydrazine, not hydrazone, hence correct

The position of nitro groups on phenyl ring is not correctly specified

It has the the general formula of R1R2C=NNH2.

Already explained “incorrect”.

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Tagged under Chemistry · Aldehydes and Ketones · 2016