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JEE Advanced 2022 Paper 1
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© examsnet.com
Question : 53
Total: 54
LIST-I contains metal species and LIST-II contains their properties.
LIST-I
LIST-II
(I)
[
Cr
(
CN
)
6
]
4
−
(P)
t
2
g
orbitals contain 4 electrons
(II)
[
RuCl
6
]
2
−
(Q)
µ
(spin-only)
=
4.9
BM
(III)
[
Cr
(
H
2
O
)
6
]
2
+
(R) low spin complex ion
(IV)
[
Fe
(
H
2
O
)
6
]
2
+
(S) metal ion in
4
+
oxidation state
(T)
d
4
species
[Given : Atomic number of
Cr
=
24
,
Ru
=
44
,
Fe
=
26
] Metal each metal species in LIST-I with their properties in LIST-II, and choose the correct option
(A) I
→
R, T; II
→
P, S; III
→
Q, T; IV
→
P, Q
(B) I
→
R, S; II
→
P, T; III
→
P, Q; IV
→
Q, T
(C)
I
→
P
,
R
;
II
→
R
,
S
;
III
→
R
,
T
;
IV
→
P
,
T
(D) I
→
Q, T; II
→
S, T; III
→
P, T; IV
→
Q, R
Validate
Solution:
(1)
[
Cr
(
CN
)
6
]
4
−
Cr
+
2
=
[
Ar
]
18
3
d
4
4
s
0
; low spin complex
P
,
R
,
T
(2)
[
RuCl
6
]
2
−
Ru
+
4
=
[
Kr
]
36
4
d
4
5
s
0
;
low spin complex
P
,
R
,
S
,
T
(3)
[
Cr
(
H
2
O
)
6
]
2
+
Cr
+
2
=
[
Ar
]
18
3
d
4
4
s
0
;
high spin complex
Q
,
T
(4)
[
Fe
(
H
2
O
)
6
]
2
+
Fe
+
2
=
[
Ar
]
18
3
d
6
;
High spin complex
P
,
Q
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