1.

There are 3 unknown metals-A ,B and C,C displaces B from its oxide while with oxide of A, there is no reaction. Give the reactivity order of A, B and C.

Answer»

SOLUTION :C displaces B from its OXIDE, therefore C is more reactive than B.
There is no reaction when C is treated with oxide of A or C does not DISPLACE A from its oxide. So, A is more reactive than C. Thus, the reactivity orderis `B lt C lt A`


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