MCQ
Among the given pairs in which pair, first compound has higher boiling point than second?
  • A
    $C{H_3} - C{H_2}OC{H_3}$ and $\begin{array}{*{20}{c}}
    {C{H_3} - CH - C{H_3}}\\
    {|\,\,\,\,\,}\\
    {OH}
    \end{array}$
  • $C{H_3} - C{H_2} - C{H_2} - C{H_3}$ and $C{H_3} - C{H_2} - C{H_3}$
  • C
    $C{H_3} - C{H_2} - C{H_2} - C{H_2} - C{H_3}$ and $\begin{array}{*{20}{c}}
    {\,\,\,\,C{H_2} - C{H_3}}\\
    {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}\\
    {C{H_3} - CH - C{H_2} - OH}
    \end{array}$
  • D
    $CH_3 - CH_2 - CH_2 - CH_3$ and $CH_3 - CH_2 - CH_2 - Cl$

Answer

Correct option: B.
$C{H_3} - C{H_2} - C{H_2} - C{H_3}$ and $C{H_3} - C{H_2} - C{H_3}$
b
$(b)$  $B.P.\, \propto$ surface area of molecule $\propto$ extent of inter molecular $H$ -bonding $\propto$ dipole moment of molecule.

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