Assertion (A): `PbCl_(2)` is more stable than `PbCl_(4)`.
Reason (R ): `PbCl_(4)` is a powerful oxidising agent.

Options

A. If both `(A)` and `(R )` are correct and `(R )` is the correct explanation of `(A)`.
B. If both `(A)` and `(R )` are correct but `(R )` is not the correct explanation of `(A)`.
C. If `(A)` is correct but `(R )` is incorrect.
D. If `(A)` and `(R )` are incorrect.

Answer

A

Explanation

Correct (A): `PbCl_(2)` is more stable than `PbCl_(4)` or `Pb^(2+)` is more stable than `Pb^(4+)` (due to the inert pair effect)
`2e^(-)+Pb^(+4)rarrPb^(2+)` (Reduction) (Oxidising agent)