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Acidified K2Cr2O7 solution turns green w...

Acidified `K_2Cr_2O_7` solution turns green when `Na-2SO_3`, is added to it. This is due to the formation of

A

`Cr_2(SO_4)_3`

B

`CrO_4^(2-)`

C

`Cr_2(SO_3)_3`

D

`CrSO_4`

Text Solution

Verified by Experts

The correct Answer is:
A
Hint: `Na_2SO_3 + K_2Cr_2O_4 + 4 H_2SO_4 to 3 Na_2SO_4 + K_2SO_4 Cr_2(SO_4)_3 + 4H_2O`
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ACCURATE PUBLICATION-D & F BLOCK ELEMENTS -2 OR 5 MARKS QUESTIONS
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