JEE Mains · Chemistry · STD 12 - 4. d and f- block elements
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 + \(II.\) \(C\). 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:
- A \(B\), \(D\) only
- B \(B\), \(C\) only
- C \(A\), \(D\) only
- D \(C\), \(D\) only
Answer & Solution
Correct Answer
(A) \(B\), \(D\) only
Step-by-step Solution
Detailed explanation
\((A)\) \(\mathrm{Zn}, \mathrm{Cd}, \mathrm{Hg}\) 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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