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In the preparation of O2 from KClO3, MnO...

In the preparation of `O_2` from `KClO_3, MnO_3` act as a____.

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The correct Answer is:
Catalyst
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Phosphorus pentoxide used in the preparation of N_(2)O_(5) from HNO_(3) acts as a

Arrange the following steps involved in the preparation of oxygen from KClO_(3) in a proper order. (1) content of the test tube is heated (2) A mixture of finely ground KClO_(3) and MnO_(2) is taken in a test tube. (3) The open end of the test tube is plugged with cotton. (4) delivery tube is taken out (5) The test tube is fixed in a slanting position. (6) Bunsen burner is put off. (7) Oxygen is collected by downward displacement of water.

Knowledge Check

  • Assertion (A) : In the preparation of oxygen from KClO_(3),MnO_(2) acts as a positive catalyst. Reasson (R ) : MnO_(2) decreases the activation energy of the reaction

    A
    Both A and R are correct is the correct explanation of A.
    B
    Both A and R are correct and R is not the correct explanation of A.
    C
    A is correct and R is wrong
    D
    A is wrong and R is correct.

  • In the preparation of chlorine from HCI, MnO_2 acts as:

    A
    oxidising agent
    B
    reducing agent
    C
    catalytic agent
    D
    dehydrating agent

  • In the preparation of chlorine from HCl,MnO_(2) acts as

    A
    Oxidising agent
    B
    reducing agent
    C
    Catalytic agent
    D
    Dehydrating agent

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    MnO_(2) used as a catalyst in the preparation of oxygen from KClO_(3) should be completely free of carbon. Justify.

    MnO_(2) used as a catalyst in the preparation of oxygen from KClO_(3) should be completely free of carbon. Justify.

    In Leclanche cell, MnO_(2) acts as a____.

    Which of the following statements are correct ? I. On decomposition of H_2O_2 , 1O_2 gas is released . II. 2-ethylanthraquinol is used in preparation of H_2O_2 . III. On heating KClO_3, Pb(NO_3)_2, NaNO_3, O_2 gas is released. IV In the preparation of sodium peroxoborate, H_2O_2 is treated with sodium metaborate

    Preparation of Cl_(2) from HCl and MnO_(2) , involves the process of:

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