Due to the presence of an unpaired electron,free radicals are .........

The most stable carbanion among the following is

Which of the following is the most stable carbanion?

Classify the following species into carbocation,free radical,and carbanion:
$CH_3^{\bullet}, CH_3^{+}, \bar{C}H_3, (CH_3)_3C^{\bullet}, (CH_3)_3C^{+}, (CH_3)_2CH^{+}, (CH_3)_3\bar{C}:, (CH_3)_3\ddot{C}H, C_6H_5CH_2^{\bullet}, CH_3\ddot{C}H_2, C_6H_5CH_2^{+}, CH_2=CHCH_2^{\bullet}, CH_2=CHCH_2^{+}$

Which among the following carbocations is the most reactive?

With a change in hybridisation of the carbon bearing the charge,the stability of a carbanion increases in the order: