Home
Class 12
CHEMISTRY
Why is H(2)O a liquid and H(2)S a gas?...

Why is `H_(2)O` a liquid and `H_(2)S` a gas?

Text Solution

Verified by Experts

`H_(2)O` has oxygen as the central atom. Oxygen has smaller size and higher electronegativity as compared to sulphur. Therefore, there is extensive hydrogen bonding in `H_(2)O`, which is absent in `H_(2)S`. Molecules of H2S are held together only by weak van der `Waal’`s forces of attraction.
Hence, `H_(2)O` exists as a liquid while `H_(2)S` as a gas.
Promotional Banner

Topper's Solved these Questions

  • THE P-BLOCK ELEMENTS

    NCERT|Exercise EXERCISE|74 Videos

  • THE D AND F BLOCK ELEMENTS

    NCERT|Exercise Exercise|38 Videos

  • THE SOLID STATE

    NCERT|Exercise Solved Examples|3 Videos

Similar Questions

Explore conceptually related problems

Why is H_2O a liquid and H_2S a gas?

Assertion (A): H_(2)O a liquid and H_(2)S a gas. Reason (R): Water molecules are held by H-bonds while in H_(2)S molecules no such interactions are present between molecules.

Explain (a )Which d-orbital in involved in (i) sp^(3) d hybridisation (ii) sp^(3) d^(2) hybridisation (iii) dsp^(2) hybridisation (iv) sp^(3)d^(3) hybridisation (b) Why H_(2)O is liquid while H_(2)S is gas (c ) Why KHF_(2) exists but KHCI_(2) does not (d) Benzene ring contains alternate single and double bonds yet all the C-C bonds are of equal lenght why (e) Out of P-F,CI-F,S-F and F-F bonds, which bond is the least ionic? .

At room temperature , H_(2)O is liquid while H_(2)S is a gas . The reason is

Statement-1 : H_(2)O is liquid whereas H_(2)S is gas . and Statement-2 : Oxygen is more electronegative than sulphur .

NCERT-THE P-BLOCK ELEMENTS-EXERCISE
  1. List the important sources of sulphur.

    Text Solution

    |

  2. Write the order of thermal stability of the hydrides of group 16 eleme...

    Text Solution

    |

  3. Why is H(2)O a liquid and H(2)S a gas?

    Text Solution

    |

  4. Which of the following does not react with oxygen directly? Zn,Ti,Pt,F...

    Text Solution

    |

  5. Complete the following reactions: (i) C(2) H(4) + O(2) to (ii)...

    Text Solution

    |

  6. Why does O3 act as a powerful oxidising agent?

    Text Solution

    |

  7. How is O(3) estimated quantitatively ?

    Text Solution

    |

  8. What happens when sulphur dioxide is passed through an aqueous solutio...

    Text Solution

    |

  9. Comment on the nature of two S–O bonds formed in SO(2) molecule. Are t...

    Text Solution

    |

  10. How is the presence of SO2 detected?

    Text Solution

    |

  11. Mention three areas in which H2SO4 plays an important role.

    Text Solution

    |

  12. Write the conditions to maximise the yield of H2SO4 by contact process...

    Text Solution

    |

  13. Why is K(a(2)) ltlt K(a(1)) for H(2) SO(4) in water ?

    Text Solution

    |

  14. Considering the parameters such as bond dissociation enthalpy, electro...

    Text Solution

    |

  15. Give two examples to show the anomalous behavious of fluorine.

    Text Solution

    |

  16. Sea is the greatest source of some halogens. Comment.

    Text Solution

    |

  17. Give the reason for bleaching action of Cl2.

    Text Solution

    |

  18. Name two poisonous gases which can be prepared from chlorine gas.

    Text Solution

    |

  19. Why is ICI more reactive than I2?

    Text Solution

    |

  20. Why is helium used in diving apparatus?

    Text Solution

    |