JEE Main 2024 Chemistry question
Which of the following statement are correct about Zn, Cd and Hg? A. They exhibit high enthalpy of atomization as the d-subshell is full. B. Zn and Cd do not show variable oxidation state while Hg shows +I and +II. C. Compounds of Zn, Cd and Hg are paramagnetic in nature. D. Zn, Cd and Hg are called soft metals. Choose the most appropriate from the options given below:
Answer: (A)
Solution
Zn, Cd and Hg have the (n−1)d¹⁰ns² configuration, so they have low enthalpy of atomisation, their compounds are diamagnetic
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