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  4. Which one of the following responds to Tollens test?

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Q. Which one of the following responds to Tollens test?

Rajasthan PMTRajasthan PMT 2003

Solution:

Aldehydes responds to Tollen's test.
$R - CHO +2\left[\left( Ag \left( NH _{3}\right)_{2}\right]^{+}+3 OH ^{-} \longrightarrow \right. $
$RCOO ^{-}+ \underset{\text{Silver mirror}}{2 Ag +4 NH _{3}}+2 H _{2} O $