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Which of the following substances acts a...

Which of the following substances acts as an oxidising as well as a reducing agent?

A

`Na_(2)O`

B

`SnCl_(2)`

C

`NaNO_(3)`

D

`NaNO_(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
The balanced chemical reaction is
`14H^(+), Cr_(2)O_(7)^(2-)+6I^(-) to 3Cr^(3+)+3I_(2)+7H_(2)O`
thus, 3 mol of I, is evolved, when KI reacts with 1 mole of potassium dichromate.
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NARAYNA-REDOX REACTION-Exercise -3
  1. In the reaction, IO(3)^(-)+SO(2)+4H(2)O to I(2)+SO(4)^(2-)+8H^(+) ...

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  2. Which of the following molecules can act as an oxidating as well as a ...

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  3. Which of the following substances acts as an oxidising as well as a re...

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  4. In the conversion fo Br2 to BrO3^(-) , the oxidation state of Br chan...

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  5. The oxidation sates of iodine in HIO(4), H(3)IO(5) and H(5)IO(6) are r...

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  6. Oxidation state of oxygen in F2O is

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  7. When sulphur dioxide is passed in an acidified K2Cr2O7 solution,the ox...

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  8. Oxidation number if iodine in IO(3)^(-), IO(4)^(-),KI and I(2) respect...

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  9. Oxidation state of P in H(4)P(2)O(5), H(4)P(2)O(6), H(4)P(2)O(7) are r...

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  10. Which of the following have been arranged in the decreasing order of o...

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  11. The highest oxidation state of Mn is shown by

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  12. Chlorine is in +3 oxidation state in

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  13. How many moles of iodine are liberated when one mol of potassium dichr...

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  14. For the redox reaction, MnO(4)^(-) + C(2)O(4)^(2-) + H^(+) rarr Mn^(...

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  15. An oxidation process involves

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  16. Which of the following is the most powerful oxidising agent?

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  17. Which of the following reaction involves oxidation reduction?

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  18. In the reaction SO(2)+2H(2)Srarr3S+2H(2)O the substance oxidised i...

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  19. The value of n in : MnO(4)^(-)+8H^(+)+n erarr Mn^(2+)+4H(2)O is

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  20. Which can act as an oxidising as well as a reducing agent ?

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