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CBSE Class 12-science Answered

Give reason H2S is a gas and H2O is liquid.
Asked by Topperlearning User | 11 Jun, 2014, 09:48: AM
answered-by-expert Expert Answer

  • H2O is a liquid at room temperature because it is highly associated via intermolecular hydrogen bonding.
  • H2S cannot form hydrogen bonding due to large size of sulphur. So, H2S is a discrete molecule and the intermolecular forces of attraction are weak van der Waal’s forces.
  • Hence H2S is a gas at room tempearture.
Answered by | 11 Jun, 2014, 11:48: AM
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