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When SO(2) is passed through acidified K...

When `SO_(2)` is passed through acidified `K_(2)Cr_(2)O_(7)` solution

A

the solution turns blue

B

the solution is decolourised

C

`SO_(2)`

D

chromium sulphate is formed

Text Solution

Verified by Experts

The correct Answer is:
D
When `SO_(2)` gas is passed in acidified `K_(2)Cr_(2)O_(7)` solution the following reaction takes place
`({:(K_(2)Cr_(2)O_(7)+4H_(2)SO_(4)toK_(2)SO_(4)+Cr(SO_(4))_(3)+4H_(2)O+3O),(3SO_(2)3O+3H_(2)Oto3H_(2)SO_(4)):})/(K(2)Cr_(2)O_(7)+3SO_(2)+H_(2)SO_(4)toK_(2)SO_(4)+Cr(SO_(4))_(3)+H_(2)O)`
Green chromium sulphate is formed.
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BANSAL-D AND F BLOCK ELEMENTS-Exercise-1 (Single Correct Choice Type)
  1. Pick out the incorrect statement:

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  2. The metals present in insulin and haemoglobin are respectively:

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  3. Metre scales are madeup of alloy:

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  4. A metal M which is not affected by strong acids like conc. HNO(3),conc...

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  5. underset(("Acidified"))(KMnO(4))+HCltoH(2)O+X(g),X is a:

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  6. Amongst the following species, maximum covalent character is exhibited...

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  7. Number of moles of K(2)Cr(2)O(7) can be reduced by 1 mole of Sn^(2+) i...

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  8. Pick out the incorrect statement:

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  9. The aqueous solution of CuCrO(4) is green because it contains:

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  10. The aqueous solution of the following salts will be coloured in the ca...

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  11. Rusting of iron in moist air involves-

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  12. Transition metals normally have unfilled 'd' orbitals which are degene...

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  13. Which one of the following transition metal ions is paramagnetic?

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  14. E^(Theta) value for the couple Cr^(3+)//Cr^(2+) and Mn^(3+)//Mn^(2+) a...

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  15. When ammonium dichloromate is heated it decompose and a spark is produ...

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  16. A mixture of K(2)Cr(2)O(7) and conc. H(2)SO(4) forms

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  17. When a photographic film is exposed and developed, the image is due to...

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  18. When SO(2) is passed through acidified K(2)Cr(2)O(7) solution

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  19. Which compound is deliquescent-

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  20. Anelement which is highly toxic for plants and animals is-

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