1. Tardigrade
  2. Question
  3. Chemistry
  4. The increasing order of the rate of HCN addition to compounds A-D is: (A) HCHO (B) CH3COCH3 (C) PhCOCH3 (D) PhCOPh

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Q. The increasing order of the rate of $HCN$ addition to compounds $A-D$ is :
(A) $HCHO$
(B) $CH_3COCH_3$
(C) $PhCOCH_3$
(D) $PhCOPh$

AIEEEAIEEE 2006Aldehydes Ketones and Carboxylic Acids

Solution:

Addition of HCN is nucleophilic addition. Greater the electron deficiency of carbonyl group higher the rate of reaction.
Hence,

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