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The following equations indicate reactio...

The following equations indicate reactions that occur spontaneously.
`Fe(s)+NiCl_2(aq)rarrFeCl_2(aq)+Ni(s)`
`Zn(s) +FeCl_2(aq)rarrZnCl_2(aq)+Fe(s)`
`Ni(s)+PbCl_2(aq)rarrNiCl_2(aq)+Pb(s)`
Which is the increasing order of the reactivity of the metals?

A

`Fe lt Ni lt Zn lt Pb`

B

`Pb lt Ni lt Fe lt Zn`

C

`NiZn lt Pb lt Fe`

D

`Zn lt Fe ltNi ltPb`

Text Solution

Verified by Experts

The correct Answer is:
B
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