$A$ carbanion acts as a:

In the organic reaction by fission of bond,which intermediate species are formed? Name these species and explain their stability.

Which of the following compounds gives the most stable carbocation upon dehydrogenation?

Determine the decreasing order of stability for the following carbocations: $(I) \ CH_3-C^+(CH_3)-CH_3$,$(II) \ CH_3-CH^+(OCH_3)$,$(III) \ CH_3-CH^+(COCH_3)$.

What is the correct order of stability for the following carbocations?

The correct order of the relative stability of the following carbanions is:
$I$. $HC \equiv C^{-}$
$II$. $CH_2=CH-CH_2^{-}$
$III$. $H_2C=CH^{-}$
$IV$. $(C_6H_5)_2CH^{-}$