Home
Class 12
CHEMISTRY
Explain why the thermal stability of H(2...

Explain why the thermal stability of `H_(2)O_(2)` is very low.

Text Solution

Verified by Experts

Bond dissociation enthalpy of the O-O bond present in `H_(2)O_(2)` molecule is very low. (35kcal.mo`1^(-1)`) i.e., the bond is very weak. For this reason, the thermal stability of `H_(2)O_(2)` is extremely low.
Promotional Banner

Topper's Solved these Questions

  • HYDROGEN

    CHHAYA PUBLICATION|Exercise SOLVED WBCHSE SCANNER|10 Videos
  • HYDROGEN

    CHHAYA PUBLICATION|Exercise SOLVED NCERT EXERCISE|48 Videos
  • HYDROGEN

    CHHAYA PUBLICATION|Exercise QUESTION-ANSWER ZONE FOR BOARD EXAMINATION (VERY SHORT ANSWER TYPE)|30 Videos
  • HYDROCARBONS

    CHHAYA PUBLICATION|Exercise PRACTICE SET 13|16 Videos
  • MODEL QUESTION PAPER

    CHHAYA PUBLICATION|Exercise Answer the following question (set-3)|130 Videos

Similar Questions

Explore conceptually related problems

Explain why the thermal stability of alkaline earth metal hydroxides increases down the group.

Explain why the thermal stabilities of alkaline earth metal carbonates increase down the group.

Explain why in the laboratory preparation of H_(2)O_(2) : the reaction is carried out at low temperature,

Explain why in the laboratory preparation of H_(2)O_(2) : HCL or HN O_(3) is not used,

Explain why in the laboratory preparation of H_(2)O_(2) : dilute H_(2)SO_(4) is used instead of concentrated H_(2)SO_(4) ,

Explain why in the laboratory preparation of H_(2)O_(2) : It is better to use syrupy phosphoric acid instead of dilute sulphuric acid.

Explain why the dissociation of H_(2)O_(2) is a disproportionation reaction.

Explain why in the laboratory preparation of H_(2)O_(2) : Mn O_(2) " "or PbO_(2) cannot be used instead of Ba O_(2) for preparing H_(2)O_(2) - why ?

Discuss the structure of H_(2)O_(2) molecule.Explain why the shape of H_(2)O_(2) molecule in the solid phase differs from that in the gas phase.

Explain why in the laboratory preparation of H_(2)O_(2) : At the end of the reaction, the mixture should contain a small amount of surplus acid,

CHHAYA PUBLICATION-HYDROGEN-SHORT ANSWER TYPE
  1. What characteristics do you expect from electrondeficient hydrides wit...

    Text Solution

    |

  2. Explain why it is harmful to bathe in heavy water and use it for drink...

    Text Solution

    |

  3. Explain why the thermal stability of H(2)O(2) is very low.

    Text Solution

    |

  4. How the presence of H^(-) ions confirmed in ionic hydrides?

    Text Solution

    |

  5. How do you separate 2 allotropic forms of hydrogen?

    Text Solution

    |

  6. Mention the difference in chemical characteristics of the two hydrides...

    Text Solution

    |

  7. Two samples of hard water contain same cations, Ca^(2+) & Mg^(2+). One...

    Text Solution

    |

  8. Tube-well water, if left for sometime, assumes a brownish turbidity-ex...

    Text Solution

    |

  9. Write the reactions for: preparation of H(2)O(2) from two sodium salt...

    Text Solution

    |

  10. Write the reactions for: preparation of D(2)O(2) from potassium persu...

    Text Solution

    |

  11. Between deionised water and distilled water which one is more pure and...

    Text Solution

    |

  12. Rain water is soft, but after passing over hills and mountains it gets...

    Text Solution

    |

  13. Why is Na(2)O(2) used for purifying air in submarines and in crowded ...

    Text Solution

    |

  14. Comment on the reactions of dihydrogen with Chlorine

    Text Solution

    |

  15. Comment on the reactions of dihydrogen with sodium

    Text Solution

    |

  16. Comment on the reactions of dihydrogen with copper (II) oxide.

    Text Solution

    |

  17. An ionic alkali metal hydride has covalent character to some extent an...

    Text Solution

    |

  18. Sodium reacts with dihydrogen to form a crystalline ionic solid. It is...

    Text Solution

    |

  19. Why is sea water not used in boilers?

    Text Solution

    |

  20. The values of melting point, enthalpy of vaporisation and viscosity of...

    Text Solution

    |