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Silver coating is formed on the walls of the test tube when silver nitrate is added to the organic compound in the presence of ammonia solution. The functional group present is ___________.
Correct Answer: 0
PLACEHOLDER ANSWER - the answer is a functional group. This is Tollens' silver mirror test, in which ammoniacal silver nitrate is reduced to metallic silver. It is given by aldehydes, so the functional group is the aldehyde group, $$-\text{CHO}$$.
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