Among NH3, H2O, HF and H2S which would have highest magnitude of hydrogen bonding?

Question

Among NH3, H2O, HF and H2S which would have highest magnitude of hydrogen bonding? (A) HF due to maximum polarity (B) H2O due to lone pairs of electrons (C) NH3 due to small size of nitrogen (D) H2S due to higher electron affinity of sulphur

Tardigrade Admin · Accepted Answer

Since H - F bond has maximum polarity due to most electronegative nature of fluorine, hydrogen bonding is maximum in HF molecules.

Q. Among $N H_{3}$ , $H_{2} O$ , $H F$ and $H_{2} S$ which would have highest magnitude of hydrogen bonding?

$H F$ due to maximum polarity

$H_{2} O$ due to lone pairs of electrons

$N H_{3}$ due to small size of nitrogen

$H_{2} S$ due to higher electron affinity of sulphur

Since $H - F$ bond has maximum polarity due to most electronegative nature of fluorine, hydrogen bonding is maximum in $H F$ molecules.

Q. Among NH3​, H2​O, HF and H2​S which would have highest magnitude of hydrogen bonding?

HF due to maximum polarity

H2​O due to lone pairs of electrons

NH3​ due to small size of nitrogen

H2​S due to higher electron affinity of sulphur