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When SO2 is passed into an acidified pot...

When `SO_2` is passed into an acidified potassium dichromate solution, the oxidation numbers of sulphur and chromium in the final products respectively are :

A

`+4` to 0

B

`+4 " to " +2`

C

`+4" to " +6`

D

`+6" to " +4`

Text Solution

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The correct Answer is:
C
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AAKASH INSTITUTE ENGLISH-REDOX REACTIONS-EXERCISE
  1. Oxidation state of nitrogen in H-N equiv C is

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  2. Oxidation state of oxygen in CrO(5) is

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  3. The number of peroxide linkages in CrO(5) " and " H(2)SO(5) respective...

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  4. The pair of compounds in which the metals are in their highest oxidati...

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  5. Oxidation number of chlorine atoms in CaOCl(2) are

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  6. When ethane is burnt in excess of oxygen,, the oxidation number of car...

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  7. The oxidation state of oxygen in the following reaction changes, K+O(2...

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  8. The number of electrons involved when 1 mole of H(2)O(2) decomposes as...

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  9. Which of the following elements never show positive oxidation number?

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  10. When SO2 is passed into an acidified potassium dichromate solution, th...

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  11. In an electrolytic cell, the flow of electrons is

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  12. In SHE, the pH of the acid solution

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  13. An electrochemical cell has two half cell reaction as, A^(2+)+2e^-toA,...

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  14. Which of the following is the most reactive metal?

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  15. Which of the following element has maximum standard reduction potentia...

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  16. Choose the correct statement for galvanic cell

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  17. Which of the following involves redox reaction?

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  18. Which of the following is true about salt bridge?

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  19. Standard reduction potential is calculated at

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  20. The electrochemical cell representing the given reaction Ni(s)+Cu^(2...

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