Question

Which of the following are secondary bromides?

(i) $$(\mathrm{CH}{\phantom{A}}_3){\phantom{A}}_2\mathrm{CHBr}$$

(ii) $$(\mathrm{CH}{\phantom{A}}_3){\phantom{A}}_3\mathrm{C}\mathrm{CH}{\phantom{A}}_2\mathrm{Br}$$

(iii) $$\mathrm{CH}{\phantom{A}}_3\mathrm{CH}(\mathrm{Br})\mathrm{CH}{\phantom{A}}_2\mathrm{CH}{\phantom{A}}_3$$

(iv) $$(\mathrm{CH}{\phantom{A}}_3){\phantom{A}}_2\mathrm{CBrCH}{\phantom{A}}_2\mathrm{CH}{\phantom{A}}_3$$

Answer 1

(i) $$(\mathrm{CH}{\phantom{A}}_3){\phantom{A}}_2\mathrm{CHBr}$$

(iii) $$\mathrm{CH}{\phantom{A}}_3\mathrm{CH}(\mathrm{Br})\mathrm{CH}{\phantom{A}}_2\mathrm{CH}{\phantom{A}}_3$$

Explanation:

$$\begin{array}{c}\mathrm{CH}{\phantom{A}}_3-\mathrm{CH}-\mathrm{Br}\mathrm{and}\mathrm{CH}{\phantom{A}}_3\mathrm{CHCH}{\phantom{A}}_2\mathrm{CH}{\phantom{A}}_3\\ \phantom{.}|\phantom{.................}|\phantom{....}\\ \phantom{.}\mathrm{CH}{\phantom{A}}_3\phantom{..............}\mathrm{Br}\phantom{...}\end{array}$$

are secondary bromides.