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When SO(2) is passed through acidic solu...

When `SO_(2)` is passed through acidic solution of potassium dichromate, then chromium sulphate is formed. Change in valency of chronium is

A

`+4` to `+2`

B

`+5` to `+3`

C

`+6` to `+3`

D

`+7` to `+2`

Text Solution

Verified by Experts

The correct Answer is:
C

In this reaction chromium change from +6 to +3 oxidation state.
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ERRORLESS -SOME BASIC CONCEPTS OF CHEMISTRY-Ordinary Thinking (Objective Questions) Oxidation number and Oxidation state
  1. The oxidation state of nitrogen is highest in

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  2. In which reaction there is a change in valency

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  3. When SO(2) is passed through acidic solution of potassium dichromate, ...

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  4. The oxidation state of M^(3+) after removing three elelctrons is

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  5. Oxidation number of iodine varies from -

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  6. Which one of the following has the highest oxidation number of iodine?

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  7. The charge on cobalt in [Co(CN)(6)]^(-3) is -

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  8. Oxidation state of oxygen inhydrogen peroxide is

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  9. The oxidation number of P in Mg(2)P(2)O(7) is

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  10. The atomic number of an element which can not show the oxidation stat...

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  11. The oxidation number of S in Na(2)S(4)O(6) is

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  12. Oxidation number of N in (NH(4))(2)SO(4) is

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  13. The oxidation number of sulphur in H(2)SO(4),H(2)S(2)O(4) and H(2)S(2)...

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  14. Which of the following statement is correct

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  15. The oxidation number of carbon in CH(2)Cl(2) is

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  16. Oxidation number of nitrogen in NaNO(2) is

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  17. The highest oxidation state of Mn is shown by

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  18. The oxidation number and the electronic configuration of sulphur in H(...

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  19. Oxidation number of N in NH(3) is

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  20. Nitrogen shows different oxidation states in the range:

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