Home
Class 12
CHEMISTRY
Why is H(2)S less acidic than H(2)Te ?...

Why is `H_(2)S` less acidic than `H_(2)Te` ?

Text Solution

Verified by Experts

`H_(2)S` is less acidic `(K_(a)=1.0xx10^(-7)) " than" H_(2)Te (2.3xx10^(-7))` because the cleavage of H-Te bond is easier than that of H-S bond due to its more bond length. Therefore, release of `H^(+)` from `H_(2)Te` takes place more readily than from `H_(2)S` molecule.
Promotional Banner

Topper's Solved these Questions

  • THE P-BLOCK ELEMENTS

    DINESH PUBLICATION|Exercise N.C.E.R.T In-Text Questions|34 Videos

  • THE P-BLOCK ELEMENTS

    DINESH PUBLICATION|Exercise N.C.E.R.T. Exercise|40 Videos

  • THE P-BLOCK ELEMENTS

    DINESH PUBLICATION|Exercise Problem 3|1 Videos

  • THE OXYGEN FAMILY

    DINESH PUBLICATION|Exercise PREPARATORY PACKAGE|14 Videos

Similar Questions

Explore conceptually related problems

(a) Write the balanced chemical equations for obtaining XeO_(3) " and " XeOF_(4) "from "XeF_(6). (b) Account for the followingk : (i) H_(2)S is less acidic then H_(2) Te. (ii) H_(3)PO_(2) has reducing nature. (iii) SO_(2) is an air pollutant.

Why is H_(2)S more acidic than water ?

H_(2)S is. more acidic than H_(2)O because

(a) Elements of group 16 generally show lower value of first ionisation enthalpy as compared to the corresponding periods of group 15 . Why ? (b) H_2 S is less than acidic than H_2 Te . Why ?

DINESH PUBLICATION-THE P-BLOCK ELEMENTS -Concept Based Questions
  1. Chlorine water has both oxidising as well as bleaching properties ? Ex...

    Text Solution

    |

  2. Oxygen molecule has the formula O(2) while sulphur is S(8). Why ?

    Text Solution

    |

  3. Why is H(2)S less acidic than H(2)Te ?

    Text Solution

    |

  4. Why does burning Mg continue to burn in a jar containing NO but burnin...

    Text Solution

    |

  5. Reducing character decreases from SO(2) " to " TeO(2). Explain.

    Text Solution

    |

  6. Why is iodine more soluble in KI solution than in water ?

    Text Solution

    |

  7. Iodine is liberated in the reaction between KI and CU^(2+) ions but ch...

    Text Solution

    |

  8. Lithium fluroide (LiF) is mainly ionic but lithium iodide (LiI) is cov...

    Text Solution

    |

  9. Interhalogen compounds are more reactive than halogens. Why ?

    Text Solution

    |

  10. ClF(3) exists but FCl(3) does not. Why ?

    Text Solution

    |

  11. Ferric iodide is very unstable but ferric chloride is stable. Explain.

    Text Solution

    |

  12. HF is not stored in glass bottles but is kept in wax bottles. Assign r...

    Text Solution

    |

  13. KHF(2) is a well known compound whereas KHCl(2) does not exist. Why ?

    Text Solution

    |

  14. Fluorine does not show variable oxidation states while other members o...

    Text Solution

    |

  15. Chlorine water has both oxidising as well as bleaching properties prop...

    Text Solution

    |

  16. On addition of ozone gas to KI solution, violet vapours are obtained. ...

    Text Solution

    |

  17. Despite having greater polarity, hydrogen fluoride boils at a lower te...

    Text Solution

    |

  18. The conjugate base of HClO(4) is a weaker base than H(2)O. Explain.

    Text Solution

    |

  19. The group of noble gas elements is called zero group. Why ?

    Text Solution

    |

  20. Noble gas elements form compounds only with fluorine and oxygen. Expla...

    Text Solution

    |