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In the conversion of CrO(4)^(-2)rarrCr(2...

In the conversion of `CrO_(4)^(-2)rarrCr_(2)O_(7)^(-2)`, the oxidation number of oxygen 

A

increase

B

decrease

C

become zero

D

remains unchanged

Text Solution

Verified by Experts

The correct Answer is:
D
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AAKASH SERIES-STOICHIOMETRY-Objective Exercise -1
  1. What is the oxidation state of carbon in carbondioxide?

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  2. In which of the following compounds oxygen exhibits an oxidations stat...

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  3. In the conversion of CrO(4)^(-2)rarrCr(2)O(7)^(-2), the oxidation numb...

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  4. (A) : Average oxidation number of chlorine in bleaching powder is zero...

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  5. Oxidation number of carbon is zero in the compound

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  6. {:("LIST - 1","LIST - 2"),("(Oxidation state)","(Substance)"),("A) + 3...

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  7. If three electrons are lost by Mn^(3+), its final oxidation state woul...

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  8. Oxidation number and Covalency of sulphur in S(8) molecule are respect...

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  9. The oxidation state of Barium in Ba(H(2)PO(2))(2) is

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  10. The number  of electrons involved in the half reaction Cr(2)O(7)^(2-)r...

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  11. Sum of the oxidation numbers of carbon in acetaldehyde is

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  12. In bleaching powder oxidation states of Cl are

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  13. Oxidation number of sulphur in oleum (H(2)S(2)O(7)) is

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  14. The compound formed in the brown ring test has the formula [Fe(H(2)O)(...

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  15. In the reaction of chlorine with dry slaked lime, the oxidation number...

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  16. When copper is added to a solution of silver nitrate, silver is precip...

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  17. Average oxidation state of sulphur atoms in the thiosulphate ion

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  18. Oxidation numbers of sodium, mercury in sodium amalgam are

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  19. Chlorine is passed into dilute cold KOH solution. What are the oxidati...

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  20. The oxidation state of sulphur in Na(2)S(4)O is

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