Home
Class 7
CHEMISTRY
Which of the following chemical change i...

Which of the following chemical change is a photolytic decomposition reaction?

A

Decomposition of HOCl on standing.

B

Formation of hydrogen chloride from their constituent elements.

C

Decomposition of limestone .

D

Both 1 and 2.

Text Solution

Verified by Experts

The correct Answer is:
1
Decomposition of limestone takes place at higher temperatures . Hence it is a thermal decomposition reaction . Formation of HCl takes place in presence of light . But it is not a decomposition reaction. HOCl on standing in presence of light decompose to give HCl and `O_(2)`.
Promotional Banner

Topper's Solved these Questions

  • ATOMIC STRUCTURE AND TRANSFORMATION OF MATTER

    PEARSON IIT JEE FOUNDATION|Exercise Level -3|5 Videos

  • ATOMIC STRUCTURE AND TRANSFORMATION OF MATTER

    PEARSON IIT JEE FOUNDATION|Exercise Assessment Test 1|15 Videos

  • ATOMIC STRUCTURE AND TRANSFORMATION OF MATTER

    PEARSON IIT JEE FOUNDATION|Exercise CONCEPT APPLICATION Level -1|39 Videos

  • AIR AND OXYGEN

    PEARSON IIT JEE FOUNDATION|Exercise Assemssment Test-2|15 Videos

  • CHEMISTRY IN DAILY LIFE

    PEARSON IIT JEE FOUNDATION|Exercise MOCK TEST|25 Videos

Similar Questions

Explore conceptually related problems

Which of the following is a chemical change ?

Which of the following is a chemical change ?

Which of the following is a chemical change ?

Which of the following is a chemical change?

PEARSON IIT JEE FOUNDATION-ATOMIC STRUCTURE AND TRANSFORMATION OF MATTER-Level -2
  1. The ratio of number of electrons present I four shells of an element i...

    Text Solution

    |

  2. The difference in the number of elelctrons between K, L and L, M shell...

    Text Solution

    |

  3. The colour change of CuSO(4) solution can observed when it is made to ...

    Text Solution

    |

  4. Identify the ratio of the coefficients of the products CuO,NO(2) and H...

    Text Solution

    |

  5. Which of the following chemical change is a photolytic decomposition r...

    Text Solution

    |

  6. While explaining modern concept of atom , Jack asked the teacher " wh...

    Text Solution

    |

  7. A stable neutral atom 'X' contains two completely filled orbits . Find...

    Text Solution

    |

  8. Mass of total positive charge present in an atom is 7348 times to th...

    Text Solution

    |

  9. While coming back from school in the school in the school bus , Bill a...

    Text Solution

    |

  10. Predict the valencies of the elements with atomic numbers 7 , 15 , 16 ...

    Text Solution

    |

  11. In an atom , L and M shells have the same number of electrons . N shel...

    Text Solution

    |

  12. Explain the formation of the compound formed by two elements with Z...

    Text Solution

    |

  13. An atom of an element has the electrons distributed in four shells ....

    Text Solution

    |

  14. A negative ion of an atom element X has 18 electrons and 16 protons ...

    Text Solution

    |

  15. If the formula of metal sulphite of a metal M is MSO(3) , give the fo...

    Text Solution

    |

  16. In a chemical laboratory , a student broke the thermometer while perf...

    Text Solution

    |

  17. Asha 's mother asked her daughter Asha to boil the milk and after some...

    Text Solution

    |

  18. What is the valency of iron in the products formed (a) When iron...

    Text Solution

    |

  19. Give the necessary chemical equations and balance them. (a) Reac...

    Text Solution

    |

  20. In a science fair , a student took two test tubes labelled A and B fi...

    Text Solution

    |