A Level Chemistry 9701/11/O/N/20 Q27

Question

Which pair of test results would prove that a substance, X, is a ketone?
A X has no reaction with Tollens’ reagent. X reacts with alkaline aqueous iodine.
B X is reduced by lithium aluminium hydride. X is oxidised by acidified dichromate(VI).
C X reacts with 2,4-DNPH reagent. X has no reaction with Fehling’s reagent.
D X reacts with hydrogen cyanide. X is reduced by lithium aluminium hydride.

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    2021-07-06T17:22:44+08:00

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