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Chemistry Test 149
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Chemistry Test 149
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  • Question 1/10
    4 / -1

    The oxidation number of Cr is+ 6 in

  • Question 2/10
    4 / -1

    The oxidation number of carbon is+ 3 in

  • Question 3/10
    4 / -1

    Suppose a compound contains atoms A,B and C. The oxidation number of A is+ 2, B is+ 5 and C is –2.The possible formula of the cmpound would be

  • Question 4/10
    4 / -1

    The oxidation number of phosphorus in its compounds varies from

  • Question 5/10
    4 / -1

    The rducing agent used in Thermit process is

  • Question 6/10
    4 / -1

    For the redox reaction

  • Question 7/10
    4 / -1

    The oxidation number of sulphur in H2SO5 is

  • Question 8/10
    4 / -1

    The oxidation number of sulphur in H2S2O8 is

  • Question 9/10
    4 / -1

    A sample of 2.5 mol of hydrazine (N2H4) loses 25 mol of electrons on being converted into a new compound X. Assuming that all of the nitrogen appears in the new compound, what is the oxidation state of nitrogen in compound X?

  • Question 10/10
    4 / -1

    The equivalent weight of nitrogen in the reaction 

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