Home
Class 12
CHEMISTRY
Explain why in the laboratory preparatio...

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

Promotional Banner

Topper's Solved these Questions

  • HYDROGEN

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

  • HYDROGEN

    CHHAYA PUBLICATION|Exercise SHORT ANSWER TYPE|30 Videos

  • HYDROGEN

    CHHAYA PUBLICATION|Exercise PRACTICE SET -9|5 Videos

  • HYDROCARBONS

    CHHAYA PUBLICATION|Exercise PRACTICE SET 13|16 Videos

  • MODEL QUESTION PAPER

    CHHAYA PUBLICATION|Exercise Answer the following question (set-3)|130 Videos
CHHAYA PUBLICATION-HYDROGEN-WARM UP EXERCISE
  1. Explain why in the laboratory preparation of H(2)O(2) : HCL or HNO(3...

    Text Solution

    |

  2. Explain why in the laboratory preparation of H(2)O(2) : The paste of...

    Text Solution

    |

  3. Explain why in the laboratory preparation of H(2)O(2) : It is better...

    Text Solution

    |

  4. Explain why in the laboratory preparation of H(2)O(2) : MnO(2) " "o...

    Text Solution

    |

  5. What is Merck's perhydrol? How can it be prepared ?

    Text Solution

    |

  6. How can H(2)O(2) be manufactured by using 50% H(2)SO(4) solution?

    Text Solution

    |

  7. What is Marshall's acid?

    Text Solution

    |

  8. How can H(2)O(2) solution be prepared by electrolysing an equimolar mi...

    Text Solution

    |

  9. Explain why a solution of H(2)O(2) cannot be concentrated by distillat...

    Text Solution

    |

  10. Which organic compound is used for manufacturing H(2)O(2) conveniently...

    Text Solution

    |

  11. Discuss the structure of H(2)O(2) molecule.Explain why the shape of H(...

    Text Solution

    |

  12. Explain why the dissociation of H(2)O(2) is a disproportionation react...

    Text Solution

    |

  13. Mention some of the factors which accelerate the decomposition of H(2)...

    Text Solution

    |

  14. Name two compounds which can decelerate the decomposition of H(2)O(2).

    Text Solution

    |

  15. H(2)O(2) reacts with NaOH to give two types of salts - why? Write dow...

    Text Solution

    |

  16. Explain why H(2)O(2) cannot liberate CO(2) by reducing carbonate or bi...

    Text Solution

    |

  17. H(2)O(2) exhibits both oxidising and reducing properties. Explain why.

    Text Solution

    |

  18. What do you mean by the 'antichlor' property of H(2)O(2)?

    Text Solution

    |

  19. Give the mechanism of the bleaching action of H(2)O(2).

    Text Solution

    |

  20. What are perhydrates? Give examples.

    Text Solution

    |