QJEEM24Ch2914: JEE Main 2024 Chemistry - Class 12 JEEM24Ch2914 Solution: Which of the following statements are correct about and ? A.…

Question

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Which of the following statements are correct about $\mathrm{Zn}, \mathrm{Cd}$ and $\mathrm{Hg}$ ?

A. They exhibit high enthalpy of atomization as the d-subshell is full.

B. $\mathrm{Zn}$ and $\mathrm{Cd}$ do not show variable oxidation state while $\mathrm{Hg}$ shows $+\mathrm{I}$ and $+\mathrm{II}$ .

C. Compounds of $\mathrm{Zn}, \mathrm{Cd}$ and $\mathrm{Hg}$ are paramagnetic in nature.

D. $\mathrm{Zn}, \mathrm{Cd}$ and $\mathrm{Hg}$ are called soft metals.

Choose the most appropriate from the options given below:

Accepted Answer

(A) $\mathrm{Zn}, \mathrm{Cd}, \mathrm{Hg}$ exhibit lowest enthalpy of atomization in respective transition series.

(C) Compounds of $\mathrm{Zn}, \mathrm{Cd}$ and $\mathrm{Hg}$ are diamagnetic in nature.

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