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Coordination Compounds
- Online Test
Coordination Compounds
TEST : 2
# Coordination Compounds
# CBSE 12TH CHEMISTRY
Prepare / Learn
Q1.
In which of the following compounds the oxidation state of the nickel atom is 0?
A.
N
i
(
C
O
)
4
B.
N
i
(
P
F
3
)
4
C.
K
N
i
C
l
3
D.
[
N
i
(
N
H
3
)
6
]
C
l
2
View Solution
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Answer :
Option A
Explaination / Solution:
CO is neutral ligand so Ni has 0 oxidation state.
# Coordination Compounds
# CBSE 12TH CHEMISTRY
Prepare / Learn
Q2.
What is the coordination number of chromium in [Cr(NH3)2(H2O2)2]Cl3?
A.
5
B.
6
C.
3
D.
4
View Solution
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Answer :
Option D
Explaination / Solution:
There are 4 ligands attachted so CN= 4.
# Coordination Compounds
# CBSE 12TH CHEMISTRY
Prepare / Learn
Q3.
Which of the following is non – ionizable?
A.
[
C
o
(
N
H
3
)
3
C
l
3
]
B.
[
C
o
(
N
H
3
)
6
]
C
l
2
C.
C
o
(
N
H
3
)
5
C
l
]
C
l
2
D.
[
C
o
(
N
H
3
)
4
C
l
2
]
C
l
View Solution
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Answer :
Option A
Explaination / Solution:
In A there is no ion present outside the coordination sphere so it is ionizable.
# Coordination Compounds
# CBSE 12TH CHEMISTRY
Prepare / Learn
Q4.
Which of the following pair contains complex salt and double salt respectively?
A.
B.
[
C
u
(
N
H
3
)
4
]
S
O
4
,
F
e
S
O
4
.7
H
2
O
C.
M
g
S
O
4
.7
H
2
O
,
C
u
S
O
4
D.
F
e
S
O
4
,
K
4
[
F
e
(
C
N
)
6
]
View Solution
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Answer :
Option A
Explaination / Solution:
[
C
u
(
N
H
3
)
4
]
S
O
4
this is complex salt while
K
2
S
O
4
A
l
2
(
S
O
4
)
3
.24
H
2
O
is double salt.
# Coordination Compounds
# CBSE 12TH CHEMISTRY
Prepare / Learn
Q5.
In which of the following compounds, the metal is in the lowest oxidation state?
A.
M
n
2
(
C
O
)
10
M
n
10
M
n
2
(
C
O
)
10
M
n
2
(
C
O
)
10
B.
[
C
o
(
N
H
3
)
5
B
r
]
2
S
O
4
C.
K
[
P
t
C
l
3
(
C
2
H
4
)
]
D.
F
e
3
[
F
e
(
C
N
)
6
]
2
View Solution
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Answer :
Option A
Explaination / Solution:
CO is neutral so Mn has zero oxidation state.
# Coordination Compounds
# CBSE 12TH CHEMISTRY
Prepare / Learn
Q6.
The effective atomic number of Fe in
F
e
(
C
O
)
5
is
A.
36
B.
26
C.
34
D.
24
View Solution
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Answer :
Option A
Explaination / Solution:
26+2(5)=36
# Coordination Compounds
# CBSE 12TH CHEMISTRY
Prepare / Learn
Q7.
Effective atomic number of Fe in the complex K4[Fe(CN)6] is
A.
12
B.
36
C.
24
D.
18
View Solution
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Answer :
Option B
Explaination / Solution:
26+2(6)-2=36
# Coordination Compounds
# CBSE 12TH CHEMISTRY
Prepare / Learn
Q8.
The oxidation state of Ag in tollen’s reagent is
A.
+1
B.
+2
C.
+1.5
D.
0
View Solution
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Answer :
Option A
Explaination / Solution:
oxidation state of Ag in tollen’s reagent is +1.
# Coordination Compounds
# CBSE 12TH CHEMISTRY
Prepare / Learn
Q9.
Which is not true about a ligand?
A.
It can be monodentate of multidentate
B.
A multidentate ligand cannot cause chelation
C.
A monodentate ligand cannot be chelating ligand
D.
It can act as a Lewis Base
View Solution
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Answer :
Option B
Explaination / Solution:
Multidentate ligand always act as chelating Ligand
# Coordination Compounds
# CBSE 12TH CHEMISTRY
Prepare / Learn
Q10.
In which of the following complexes, the nickel metal is in the highest oxidation state?
A.
[
N
i
(
N
H
3
)
6
]
(
B
F
4
)
2
B.
K
4
[
N
i
(
C
N
)
6
]
C.
K
2
N
i
F
6
D.
N
i
(
C
O
)
4
View Solution
Add Work Space
Answer :
Option C
Explaination / Solution:
In A Ni has +4 oxidation state.
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