Question 11.Q.37: Which of the following pairs of compounds are identical? Whi......

Which of the following pairs of compounds are identical? Which are constitutional isomers? Which are completely unrelated?

a. \quad\begin{matrix} \rm Br \\ \mid \\ \rm CH_3CH_2CHCH_3 \end{matrix} and \begin{matrix} \rm Br\quad\qquad \\ \mid\qquad\quad \\ \rm CH_3CHCH_2CH_3 \end{matrix}

b. \quad\begin{matrix} \rm Br \qquad CH_3 \\ \mid\qquad\qquad\mid \\ \rm CH_3CH_2CHCH_2CH_3 \end{matrix} and \begin{matrix} \rm CH_3\qquad\qquad\qquad \\ \mid\qquad\qquad\qquad \\ \rm CH_3CHCH_2CHCH_2CH_3 \\ \mid \\ \rm Br \end{matrix}

c. \quad\begin{matrix} \rm Br\qquad \\ \mid\qquad \\ \rm CH_3CCH_2CH_3 \\ \mid\qquad \\ \rm Br\qquad \end{matrix} and \begin{matrix} \rm Br\qquad \\ \mid\qquad \\ \rm Br-CCH_CH_3 \\ \mid\qquad \\ \rm CH_3\qquad \end{matrix}

d. \quad\begin{matrix} \qquad\rm CH_3 \\ \quad\mid \\ \rm BrCH_2CH_2CCH_2CH_3 \\ \quad\mid \\ \qquad\rm Br \end{matrix} and \begin{matrix} \rm Br\qquad CH_2Br\qquad\quad\\ \mid\qquad\qquad\mid\qquad\qquad \\ \rm CH_2CH_2CHCH_2CH_3 \end{matrix}