Aldehydes Ketones Question 183
Question: The reagent with which both aldehyde and acetone react easily is
[CPMT 1973, 74, 89; BIT 1992]
Options:
A) Fehling’s reagent
B) Grignard reagent
C) Schiff’s reagent
D) Tollen’s reagent
Show Answer
Answer:
Correct Answer: B
Solution:
$ \underset{Aldehyde}{\mathop{R-\underset{\underset{H}{\mathop{|}}}{\mathop{C}}=O}}+\underset{Grignardreagent}{\mathop{R-Mg-X}}\to R-\underset{H}{\mathop{\underset{|}{\mathop{\overset{R}{\mathop{\overset{|}{\mathop{C}}}}}}}}-OMgX $
$ \underset{Ketone}{\mathop{R-\underset{\underset{R}{\mathop{|}}}{\mathop{C}}=O}}+R-Mg-X\to R-\underset{R}{\mathop{\underset{|}{\mathop{\overset{R}{\mathop{\overset{|}{\mathop{C}}}}}}}}-O-MgX $