The incorrect order of boiling point is

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) The correct answer is $(D)$.In option $(A)$,$H_2O$ has more extensive hydrogen bonding than $CH_3OH$,so $H_2O > CH_3OH$ is correct.In option $(B)$

Vedclass · Accepted Answer

$CH_3N_3 > HN_3$

Vedclass · Answer

(D) The correct answer is $(D)$.In option $(A)$,$H_2O$ has more extensive hydrogen bonding than $CH_3OH$,so $H_2O > CH_3OH$ is correct.In option $(B)$,$NH(CH_3)_2$ has intermolecular hydrogen bonding while $N(CH_3)_3$ does not,so the order $N(CH_3)_3 > NH(CH_3)_2$ is actually incorrect as well,but usually,in such multiple-choice questions,we look for the most prominent discrepancy. However,$CH_3N_3$ (methyl azide) has only dipole-dipole interactions,whereas $HN_3$ (hydrazoic acid) exhibits intermolecular hydrogen bonding,making $HN_3 > CH_3N_3$. Thus,the order $CH_3N_3 > HN_3$ is incorrect.

Similar Questions

$NH_3$ has a much higher boiling point than $PH_3$ because

The correct order of boiling points of hydrogen halides is

Assertion : Boiling point of $p$-nitrophenol is higher than that of $o$-nitrophenol.
Reason : $p$-nitrophenol has intermolecular hydrogen bond whereas $o$-nitrophenol has intramolecular hydrogen bond.

The density of water is higher than that of ice due to:

The boiling points of $HF$, $HCl$, $HBr$ and $HI$ follow the order:

Vedclass Test Series

Exam Paper Generator

Online Exam Module