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When an article is bleached by SO(2) it ...

When an article is bleached by `SO_(2)` it loses its colour. The colour can be restored by :

A

exposure to air

B

heating

C

diluton

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
A
`SO_(2)+2H_(2)O to H_(2)SO_(4)+2H`
`"coloured matter"underset("Oxidation")overset("Reduction")hArr`"colourless matter".
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RESONANCE-P BLOCK ELEMENTS-Exercise 2 part 2 OBJECTIVE
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  2. Consider the following compounds : (i) sulpher dioxide (ii) hydrog...

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

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

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

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

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

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

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

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

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

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  12. There is no S-S bond in

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  13. Sodium thiosulphate is prepared by

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

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

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

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

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

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

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  20. What is true for hydrogen peroxide and ozone ?

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