Account for the following: (i) water is a liquid while H_(2)S is a gas (ii) NH_(3) has higher boiling point than PH_(3).

Account for the following: (i) water is a liquid while H_(2)S is a ga

1.	Account for the following: (i) water is a liquid while H_(2)S is a gas (ii) NH_(3) has higher boiling point than PH_(3).
Answer» Solution :(i) In case of WATER, hydrogen bonding causes association of the `H_(2)O` molecules. There is no such hydrogen bonding in `H_(2)S,`that is why it is a GAS. (ii) There is hydrogen bonding in `NH_(3)` but not in `PH_(3).`