Hydrogen sulphide is acidic while water is neutral. The reason is

Options

A. molecular weight of `H_(2)S` is more than `H_(2)O`water molecules associate, while `H_(2)S` molecules does not
B. water molecules associate, while `H_(2)S` molecules does not
C. H-S bond is weaker than `H-O` bond due to the bigger size of S-atom
D. S-atoms has less affinity for hydrogen atom than O-atom has for it

Answer

C

Explanation

Hydrogen sulphide is acidic because H-S bond is weaker than H-O bond due to bigger size of S-atom.