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Two beakers A and B contain iron sulphat...

Two beakers A and B contain iron sulphate solution. In beaker A, a small piece of copper and in beaker B in a small piece of zinc are placed. It is found that after some time a grey deposite forms on zinc but not on copper. From these observations it can be concluded that:

A

Zinc is most active metal followed by iron and then copper

B

Zinc is most active metal followed by copper and then iron.

C

Iron is most active metal followed by zinc and then copper.

D

Iron is most active metal followed by copper and then zinc.

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