It is the general formula of:
Correct answer: A. 2, 4-Dinitrophenyl hydrazine
- 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.
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About Reactivity of Aldehydes and Ketones
The polar carbonyl group makes aldehydes and ketones undergo nucleophilic addition, reduction and condensation reactions. Aldehydes are generally more reactive and oxidise readily to carboxylic acids, whereas ketones resist mild oxidation; reactions with hydrogen cyanide, sodium bisulfite and 2,4-DNP help identify their behaviour.
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