D And F Block Elements Question 11

Question 11 - 2024 (29 Jan Shift 2)

Which of the following statements 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:

(1) B, D only

(2) B, C only

(3) A, D only

(4) C, D only

Show Answer

Answer (1)

Solution

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

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