WBCS 2024 · Question 104 of 196

Which particular bonding exists in H2O and HF but does not exist in H2S?

Science - Chemistry

ACovalent bonding
BIonic bonding
CHydrogen bondingCorrect
DMetallic bonding

Answer: C. Hydrogen bonding

Explanation

Official WBPSC key (Series A): (C) Hydrogen bonding. H2O and HF form hydrogen bonds (O–H, F–H); H2S does not, as sulphur is not electronegative enough.

Source: WBCS (Exe) etc. (Prelim) 2024, Series A

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