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Q.
Match List - I with List - II.

List - I List - II

Species Electronic distribution

(A) ${Cr}^{+ 2}$ (I) $3 d^{8}$

(B) ${Mn}^{+}$ (II) $3 d^{3} 4 s^{1}$

(C) ${Ni}^{+ 2}$ (III) $3 d^{4}$

(D) $V^{+}$ (IV) $3 d^{5} 4 s^{1}$

Choose the correct answer from the options given below: [2024]

1 (A)-(I), (B)-(II), (C)-(III), (D)-(IV)

2 (A)-(III), (B)-(IV), (C)-(I), (D)-(II)

3 (A)-(IV), (B)-(III), (C)-(I), (D)-(II)

4 (A)-(II), (B)-(I), (C)-(IV), (D)-(III)

Ans.
(2)

Atom Electronic configuration Ion Electronic configuration

${}_{23}V$ ${}_{18}{[Ar]} 3 d^{3} 4 s^{2}$ $V^{+}$ ${}_{18}{[Ar]} 3 d^{3} 4 s^{1}$

${}_{24}{Cr}$ ${}_{18}{[Ar]} 3 d^{5} 4 s^{1}$ ${Cr}^{2 +}$ ${}_{18}{[Ar]} 3 d^{4}$

${}_{25}{Mn}$ ${}_{18}{[Ar]} 3 d^{5} 4 s^{2}$ ${Mn}^{+}$ ${}_{18}{[Ar]} 3 d^{5} 4 s^{1}$

${}_{28}{Ni}$ ${}_{18}{[Ar]} 3 d^{8} 4 s^{2}$ ${Ni}^{2 +}$ ${}_{18}{[Ar]} 3 d^{8}$

Solution

Q.
Match List - I with List - II.

List - I List - II

Species Electronic distribution

(A) ${Cr}^{+ 2}$ (I) $3 d^{8}$

(B) ${Mn}^{+}$ (II) $3 d^{3} 4 s^{1}$

(C) ${Ni}^{+ 2}$ (III) $3 d^{4}$

(D) $V^{+}$ (IV) $3 d^{5} 4 s^{1}$

Choose the correct answer from the options given below: [2024]

1 (A)-(I), (B)-(II), (C)-(III), (D)-(IV)

2 (A)-(III), (B)-(IV), (C)-(I), (D)-(II)

3 (A)-(IV), (B)-(III), (C)-(I), (D)-(II)

4 (A)-(II), (B)-(I), (C)-(IV), (D)-(III)

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	List - I		List - II
	Species		Electronic distribution
(A)	${Cr}^{+ 2}$	(I)	$3 d^{8}$
(B)	${Mn}^{+}$	(II)	$3 d^{3} 4 s^{1}$
(C)	${Ni}^{+ 2}$	(III)	$3 d^{4}$
(D)	$V^{+}$	(IV)	$3 d^{5} 4 s^{1}$

Atom	Electronic configuration	Ion	Electronic configuration
${}_{23}V$	${}_{18}{[Ar]} 3 d^{3} 4 s^{2}$	$V^{+}$	${}_{18}{[Ar]} 3 d^{3} 4 s^{1}$
${}_{24}{Cr}$	${}_{18}{[Ar]} 3 d^{5} 4 s^{1}$	${Cr}^{2 +}$	${}_{18}{[Ar]} 3 d^{4}$
${}_{25}{Mn}$	${}_{18}{[Ar]} 3 d^{5} 4 s^{2}$	${Mn}^{+}$	${}_{18}{[Ar]} 3 d^{5} 4 s^{1}$
${}_{28}{Ni}$	${}_{18}{[Ar]} 3 d^{8} 4 s^{2}$	${Ni}^{2 +}$	${}_{18}{[Ar]} 3 d^{8}$

Solution

Q. Match List - I with List - II. List - I List - II Species Electronic distribution (A) Cr+2 (I) 3d8 (B) Mn+ (II) 3d34s1 (C) Ni+2 (III) 3d4 (D) V+ (IV) 3d54s1 Choose the correct answer from the options given below: [2024]

1 (A)-(I), (B)-(II), (C)-(III), (D)-(IV)

2 (A)-(III), (B)-(IV), (C)-(I), (D)-(II)

3 (A)-(IV), (B)-(III), (C)-(I), (D)-(II)

4 (A)-(II), (B)-(I), (C)-(IV), (D)-(III)

Ans. (2) Atom Electronic configuration Ion Electronic configuration V23 [Ar]183d34s2 V+ [Ar]183d34s1 Cr24 [Ar]183d54s1 Cr2+ [Ar]183d4 Mn25 [Ar]183d54s2 Mn+ [Ar]183d54s1 Ni28 [Ar]183d84s2 Ni2+ [Ar]183d8

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Q.
Match List - I with List - II.

List - I List - II

Species Electronic distribution

(A) ${Cr}^{+ 2}$ (I) $3 d^{8}$

(B) ${Mn}^{+}$ (II) $3 d^{3} 4 s^{1}$

(C) ${Ni}^{+ 2}$ (III) $3 d^{4}$

(D) $V^{+}$ (IV) $3 d^{5} 4 s^{1}$

Choose the correct answer from the options given below: [2024]