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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

increases

B

decreases

C

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

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  2. The oxidation number of sulphur in S(8), S(2)F(2) and H(2)S are

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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. Oxidation number of carbon is zero in the compound

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

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

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

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

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

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

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  11. In bleaching powder oxidation states of CI are

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

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

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

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

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

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  17. Chlorine is passed into dilute, cold KOH solution. What are the oxidat...

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

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  19. The oxidation number of sulphur in S(2)O(8)^(2-)

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  20. Phosphorous exhibits highest oxidation state in

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