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The reduction potentials of four metals ...

The reduction potentials of four metals `P,Q,R` and `S` are -2.90,+.34,+1.20` and `-0.76` respectively. Reactivity dereases in the order.

A

`P gt Q gt R gt S`

B

`Q gt P gt R gt S`

C

`R gt Q gt S gt P`

D

`P gt S gt Q gt R`

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The correct Answer is:
D
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