Question

Match the Column I with Column II and select the correct answer using given codes.

Column I		Column II
A	$3d$-transition series	1	Cerium $(Z=58)$
B	$4d$-transition series	2	Actinium $(Z=89)$
C	$4f$-inner transition series	3	Zinc $(Z=30)$
D	$5f$-inner transition series	4	Yttrium $(Z=39)$

• A. A - (1) , B - (2) , C - (3) , D - (4)
• B. A - (1) , B - (2) , C - (4) , D - (3)
• C. A - (3) , B - (4) , C - (2) , D - (1)
• D. A - (3) , B - (4) , C - (1) , D - (2)

Answer 1

Answer: (D)

The correct match is
$A\to 3;B\to 4;C\to 1;D,\to 2$
A. $3d$ transition series $⟶$ Scandium to zinc $d^1$ to $d^{10}$.
So, zinc belongs to $3d$ transition series.
B. $4d$ transition series $⟶$ Yttrium to cadmium ($39$ to $48$ atomic number).
So, yttrium belongs to $4d$-transition series.
C. $4f$-inner transition series $⟶$ Cerium to lutetium ($58$ to $71$ atomic number).
So, cerium belong to $4f$-inner transition series.
D. $5f$-inner transition series $⟶$ Actinium (thorium to lawrencium) $90$ to $103$ atomic number.
So, actinium belongs to $5f$ inner transition series.