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Q.
Which one of the following does not form sodium bisulphite addition product with sodium bisulphite solution?
J & K CETJ & K CET 2009Aldehydes Ketones and Carboxylic Acids
Solution:
Acetophenone $ (C_{6}H_{5}COCH_{3}) $ does not give addition product with sodium bisulphite $ (NaHSO_{3}) $ solution. This is because, two bulkier groups are attached with the carbonyl carbon. These groups decrease the reactivity of carbonyl carbon.