Q. Which one of the following does not form sodium bisulphite addition product with sodium bisulphite solution?

Solution:

Crystalline solid derivatives are formed when aldehydes or ketones are shaken with saturated aqueous solution of sodium bisulphite, but sodium bisulphite is a bigger nucleophile so, all ketones do not give this test. Only aliphatic methyl ketones form addition product with sodium bisulphite.

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