Home
Class 12
CHEMISTRY
In the laboratory method of preparation ...

In the laboratory method of preparation of dioxygen by thermal decomposition of potassium chlorate the catalyst used is

A

Iron fillings

B

Manganese dioxide

C

Platinum

D

Copper chloride

Text Solution

Verified by Experts

The correct Answer is:
B
`2KClO_3 undersetDeltaoverset(MnO_2)to 2KCl + 3O_2`
Promotional Banner

Topper's Solved these Questions

  • P-BLOCK ELEMENTS

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|50 Videos

  • ORGANIC COMPOUNDS CONTAINGING NITROGEN

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|40 Videos

  • POLYMERS

    MARVEL PUBLICATION|Exercise TEST YOUR GRAP|35 Videos

Similar Questions

Explore conceptually related problems

The laboratory method of preparation of CO is

Describe the laboratory method of preparation of hydrogen gas.

Which of the following reactions describes the decomposition of potassium chlorate?

The laboratory method for the preparation of H_(2)O_(2) is by

MARVEL PUBLICATION-P-BLOCK ELEMENTS -TEST YOUR GRASP
  1. In the laboratory method of preparation of dioxygen by thermal decompo...

    Text Solution

    |

  2. The element which forms oxides in all oxidation states +1 to +5 is.

    Text Solution

    |

  3. With Nesslers reagent, ammonia gives brown precipitate due to formatio...

    Text Solution

    |

  4. Oxide of nitrogen used as an oxidiser for rocket fuels in missiles and...

    Text Solution

    |

  5. Oxide of nitrogen which acts as oxidising as well as reducing agent is

    Text Solution

    |

  6. A group 16 element exists in monoatomic state in the metallic lattice....

    Text Solution

    |

  7. What is the hybridization of S in SF6 ?

    Text Solution

    |

  8. When dipped in conc. HNO3, metals like iron, chromium, nickel, alumini...

    Text Solution

    |

  9. Laughing gas has chemical formula

    Text Solution

    |

  10. A solution of colourless salt H on boiling with axcess NaOH produces a...

    Text Solution

    |

  11. When chloride is passed over dry slaked lime at room temperature the m...

    Text Solution

    |

  12. When I(2) is dissolved in C Cl(4), the colour that results is

    Text Solution

    |

  13. Fluorine does not show positive oxidation states due to the absence of

    Text Solution

    |

  14. The hybridisation of xenon in XeF2 is

    Text Solution

    |

  15. An inert gas atoms

    Text Solution

    |

  16. Argon is used in arc welding because of its

    Text Solution

    |

  17. Nitrogen shows oxidation state +5, but it does not form pentahalide as

    Text Solution

    |

  18. PCl3 fumes in moisture because

    Text Solution

    |

  19. Which of the following statement is correct?

    Text Solution

    |

  20. S-S bond is present in

    Text Solution

    |

  21. The chemical formula of baryte, the salt of sulphur is

    Text Solution

    |