Question

The correct order of boiling point is

• A. $T_2<D_2<H_2$
• B. n-pentane < neo-pentane
• C. $Xe<Ar<He$
• D. m-nitrophenol > o-nitrophenol

Answer 1

Answer: (D)

Here option D is incorrect while rest are correct as follows

$\left(A\right)T_2>D_2>H_2$ [BP $\propto$ mol. wt.]

$\left(B\right)$ n-pentane > neo-pentane [BP $\propto$ VWf $\propto$ contact area $\propto \frac{1}{Branching}$ ]

$\left(C\right)Xe>Ar>He$ [BP $\propto$ mol. wt.]

$\left(D\right)$