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Which of the following are redox reactio...

Which of the following are redox reactions?

A

`BaCI_2 + H_2 SO_4 to BaSO_4 +2HCI`

B

`2CuI_2 to 2Cul +I_2`

C

`NH_3 CI + NaOH to NaCI +NH_3 +H_2 O`

D

`snCI_2 +2HgCI_2 to SnCI_4 +Hg _2 CI_2`

Text Solution

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The correct Answer is:
B, D
In the option (a) and (c ) there is no change in oxidisation number of any of the element is found .
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