Question

Which of the following statement is true with respect to inert-pair effect?

• A. $S{n}^{2+}$ is oxidising agent while $P{b}^{4+}$ is reducing agent
• B. $S{n}^{2+}$ and $P{b}^{4+}$ are both oxidising agent and reducing agent
• C. $S{n}^{2+}$ is reducing agent while $P{b}^{2+}$ is oxidising agent
• D. $S{n}^{2+}$ is reducing agent while $P{b}^{4+}$ is oxidising agent

Answer 1

Answer: (D)

Due to inert-pair effect,stability of +2 oxidation state increases down the group in carbon family.

${\text{Sn}}^{2+}\to \text{unstable[good reducing agent]}$ ${\text{Pb}}^{4+}\to \text{unstable[good oxdising agent]}$