Correct match is :
Complexes
No. of unpaired electron
A
[CrF6]–4
P
5
B
[MnF6]–4
Q
2
C
[Cr(CN)6]–4
R
1
D
[Mn(CN)6]–4
S
4
Correct match is :
|
Complexes |
No. of unpaired electron |
||
|
A |
[CrF6]–4 |
P |
5 |
|
B |
[MnF6]–4 |
Q |
2 |
|
C |
[Cr(CN)6]–4 |
R |
1 |
|
D |
[Mn(CN)6]–4 |
S |
4 |
Option 1 -
(A – S), (B – Q), (C – P), (D – R)
Option 2 -
(A – P), (B – R), (C – Q), (D – S)
Option 3 -
(A – S), (B – P), (C – Q), (D – R)
Option 4 -
(A – R), (B – S), (C – Q), (D – P)
Asked by Shiksha User
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1 Answer
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Correct Option - 3
Detailed Solution:[CrF6]–4
⇒ Cr+2 → 3d4
F– → WFL → No pairing so unpaired e– = 4
(b) [MnF6]–4
Mn+2 → 3d5
F– → WFL → No pairing unpaired e– = 5
(c) [Cr (CN)6]–4 ⇒ Cr+2 ⇒ d4 CN– → SFL
→ unpaired e– = 2
(d) [Mn (CN)6]–4 ⇒ 3d5,
unpaired e– = 1
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