A) metal Q will displace the cation of P from its aqueous solution and deposit the metal P
B) both metals Q-and R will displace the cation of P from its aqueous solution and deposit the metal P
C) metal R will displace the cation of P from its aqueous solution and deposit the metal P
D) metal P will displace the cation of R from its aqueous solution and deposit the metal R
Correct Answer: D
Solution :
The metal that has less standard reduction electrode potential or more negative reduction potential, can displace the other metals (cations) from their aqueous solution. Among the given, P has most negative standard reduction potential, so it will displace Q and R cations from the aqueous solution and deposit them.
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