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Which of the following can turn acid K(2...

Which of the following can turn acid `K_(2)Cr_(2)O_(7)` to green ?

A

`Fe^(2+)`

B

`SO_(3)^(2-)`

C

`SO_(4)^(2-)`

D

`Fe^(3+)`

Text Solution

Verified by Experts

The correct Answer is:
A,B
`Fe^(+2)//SO_(3)^(-2)+K_(2)Cr_(2)O_(7)rarrCr^(+3)`
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