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Treatment of cyclopentanone 
with methyl lithium gives which of the following species?
with methyl lithium gives which of the following species?
A
Cyclopentanonyl anion
B
Cyclopentanonyl cation
C
Cyclopentanonyl radical
D
Cyclopentanonyl biradical
Detailed Solution
$\overset{-}{C}H_3$ from $CH_3Li$ acts as a strong base and abstracts an $\alpha$-hydrogen of cyclopentanone.
So the cyclopentanonyl anion is formed.
So the cyclopentanonyl anion is formed.