Rank the following sets of intermediates in increasing border of their stability giving appropriate reasons for your choice.

  

Rank the following sets of intermediates in increasing order of their stability giving appropriate reasons for your choice.

Answer the following questions.

Which of the indicated $\mathrm{H}$ is abstracted rapidly by bromine radical and why?

Answer the following questions.

One of the indicated proton ${\mathrm{H}}_{\mathrm{a} }\mathrm{or} {\mathrm{H}}_{\mathrm{b}}$, is approximately ${10}^{30}$ times more acidic than other, which is more acidic and why?

Arrange the following according to decreasing order of stability:

Stability order of the following carbocation is:

Arrange the following carbanions in order of decreasing stability.

Arrange the following according to their stabilities in the increasing order:

${\mathrm{CH}}_3{\mathrm{CH}}_2^{+}, {\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{CH}}_2^{+}, ({\mathrm{CH}}_3{)}_3{\mathrm{C}}^{+}, {\mathrm{CH}}_3^{+}$

Arrange the following according to their stability:

${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{CH}}_2^{-}, ({\mathrm{CH}}_3{)}_3{\mathrm{C}}^{-}, {\mathrm{Cl}}_3{\mathrm{C}}^{-}, {\mathrm{CH}}_3^{-}, ({\mathrm{CH}}_3{)}_2{\mathrm{CH}}^{-}$