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- H2S is not a solid, but a gas at room temperature.
- In water there is strong hydrogen bonding, and the molecules get extensively associated in an infinite fashion by weak electrostatic forces. So, water exists as a liquid at room temperature with a high boiling point.
- Sulphur is less electronegative than oxygen, and the S-H bond is much less polar than the O-H bond. Hence, there is no hydrogen bonding in hydrogen sulphide, and it exists as a gas normally with discrete H2S molecules.
- Only fluorine, oxygen and nitrogen are capable of hydrogen bonding in compounds having the F-H, O-H and N-H bonds respectively.
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