1.

The standard reduction electrode potentials of the three electrodes P,Q and R are respectively -1.76V, 0.34V and 0.8V. Then

Answer»

Metal Q will displace the cation of P from its aqueous SOLUTION and deposit the metal P
Both metals Q and R will displace the cation of P from its aqueous solution and deposit the metal P
Metal R will displace the cation of P from its aqueous solution and deposit the metal R
Metal P will displae the cation of R from its aqueous solution and deposit the metal R

Solution :The metal having LOW STANDARD reduction potential will displace the metal from its SALT's solution which has higher value of standard reduction potential.


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