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Which of the following is a redox react...

Which of the following is a redox reaction ?

A

`NaCl+KNO_(3)toNaNO_(3)+KCl`

B

`CaC_(2)O_(4)+2HCl to CaCl_(2)+H_(2)C_(2)O_(4)`

C

`Mg(OH)_(2)+2NH_(4)CltoMgCl_(2)+2NH_(4)OH`

D

`Zn+2AgCnto2Ag+Zn(CN)_(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
`ZntoZn^(2+)+2e^(-)`
`2Ag^(+)+2e^(-) to 2Ag`
`therefore` (d) is a redox reaction.
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