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Question:

Which of the following compounds exhibit silver mirror test?

Formaldehyde

Benzophenone

Acetaldehyde

Acetone

Solution:

The silver mirror test is for aldehydes and not for ketones. RCHO + Ag(NH3)2+ + OH- → RCOO- + Ag + NH4+. Hence, Formaldehyde and Acetaldehyde are the correct answers.