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Which of the following statements is cor...

Which of the following statements is correct when `SO_2` is passed through acidified `K_2 Cr_2 O_7` solution?

A

`SO_2`is reduced

B

Green `Cr_2 (SO_4)_3` is formed

C

The solution turns blue

D

The solution is decolourised

Text Solution

Verified by Experts

The correct Answer is:
B
`K_2 Cr_2 O_7 +H_2 SO_4 + 3SO_2 to K_2 SO_4 + H_2 O + Cr_2 (SO_4)_3 ` (green )
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