Assertion : Sn in +2 oxidation state is a reducing agent while Pb in +4 state is an oxidising agent. Reason : Inert pair effect is due to participation of s electrons in bond formation.
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 both (A) and (R) are incorrect.
Text Solution
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The correct Answer is:
C
In heavier elements, the tendency to show +2 oxidation state increases in the sequence `Ge lt Sn lt Pb`. It is due to the inability of `ns^2` electrons of valence shell to participate in bonding (inert pair effect).
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