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Which of the following can convert acidi...

Which of the following can convert acidified `Cr_(2)O_(7)^(2-)` to green ?

A

`SO_(2)//H_(2)SO_(3)//H_(2)SO_(4)`

B

`SO_(3)//H_(2)SO_(3)//H_(2)S`

C

`SO_(3)^(2-)//H_(2)S//Fe^(2+)`

D

`SO_(2)O_(3)^(2-)//SO_(3)//Fe^(3+)`

Text Solution

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The correct Answer is:
C
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SO_(2) reduces acidified K_(2)Cr_(2)O_(7) to

RESONANCE-P BLOCK ELEMENTS-Exercise 2 part 2 OBJECTIVE
  1. Consider the following compounds : (i) sulpher dioxide (ii) hydrog...

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  2. When an article is bleached by SO(2) it loses its colour. The colour c...

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  3. Which of the following can convert acidified Cr(2)O(7)^(2-) to green ?

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  4. In the reaction, H(2)SO(4)+P(2)O(5)overset(Delta)to (X)+SO(3), the pro...

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  5. Bleaching action of SO(2) is due to :

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  6. A gas that cannot be collected over water is.

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  7. Bleaching of a fabric cloth is done using A and excess of chlorine is ...

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  8. Aqueous hypo solution on reaction with aqueous AgNO(3) gives :

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  9. Which of the following gives H(2)O(2) on hydrolysis ?

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  10. Which of the following does not have S-S linkage but have O-O linkage ...

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  11. There is no S-S bond in

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  12. Sodium thiosulphate is prepared by

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  13. Ammonia , on reaction with hypochlorite anion, can form

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  14. As, Sb and Bi show little or no tendency to form negative ions of the ...

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  15. Which of the following statements is (are) correct ?

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  16. Which of the following statement(s) is//are incorrect ?

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  17. Which of the following statements is (are) correct ?

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  18. Which of the following is//are true for oxygen.

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  19. What is true for hydrogen peroxide and ozone ?

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  20. Sulphuric acid acts as

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