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Home
D and F Block Elements Test - 14
D and F Block Elements Test - 14
Result
D and F Block Elements Test - 14
/
Score
-
Rank
Time Taken:
-
Question
1/10
4 / -1
What is the oxidation state of iron in Mohr's salt?
Correct
Wrong
Skipped
A
+3
Correct
Wrong
Skipped
B
0
Correct
Wrong
Skipped
C
+2
Correct
Wrong
Skipped
D
+1
Question
2/10
4 / -1
The gas obtained by reaction of K
4
Fe(CN)
6
with conc. H
2
SO
4
is
Correct
Wrong
Skipped
A
H
2
S
Correct
Wrong
Skipped
B
CO
Correct
Wrong
Skipped
C
NO
2
Correct
Wrong
Skipped
D
CO
2
Question
3/10
4 / -1
Magnetic moment of manganese in (NH
4
)
2
MnBr
2
is
Correct
Wrong
Skipped
A
3.87 BM
Correct
Wrong
Skipped
B
5.91 BM
Correct
Wrong
Skipped
C
4.89 BM
Correct
Wrong
Skipped
D
2.82 BM
Question
4/10
4 / -1
Correct
Wrong
Skipped
A
MnBr
4
Correct
Wrong
Skipped
B
MnOBr
2
Correct
Wrong
Skipped
C
Correct
Wrong
Skipped
D
MnO , BrO
Question
5/10
4 / -1
Among the following, the coloured compound is
Correct
Wrong
Skipped
A
CuCl
Correct
Wrong
Skipped
B
K
3
[Cu (CN)
4
]
Correct
Wrong
Skipped
C
CuF
2
Correct
Wrong
Skipped
D
[Cu (CH
3
CN)
4
]BF
4
Question
6/10
4 / -1
Which of the following is not a characteristic of transition elements ?
Correct
Wrong
Skipped
A
Variable oxidation states
Correct
Wrong
Skipped
B
Formation of coloured compounds
Correct
Wrong
Skipped
C
Formation of interstitial compounds
Correct
Wrong
Skipped
D
Natural radioactivity
Question
7/10
4 / -1
The magnetic moment of a salt containing Zn
2+
ion is
Correct
Wrong
Skipped
A
0
Correct
Wrong
Skipped
B
1.87
Correct
Wrong
Skipped
C
5.92
Correct
Wrong
Skipped
D
2
Question
8/10
4 / -1
Which of the oxide of manganese is amphoteric?
Correct
Wrong
Skipped
A
MnO
2
Correct
Wrong
Skipped
B
Mn
2
O
3
Correct
Wrong
Skipped
C
Mn
2
O
7
Correct
Wrong
Skipped
D
MnO
Question
9/10
4 / -1
Which of the following ions is colourless in solution ?
Correct
Wrong
Skipped
A
V
3+
Correct
Wrong
Skipped
B
Cr
3+
Correct
Wrong
Skipped
C
Co
2+
Correct
Wrong
Skipped
D
Sc
3+
Question
10/10
4 / -1
Mercury is a liquid metal because
Correct
Wrong
Skipped
A
it has a completely filled
s
-orbital
Correct
Wrong
Skipped
B
it has a small atomic size
Correct
Wrong
Skipped
C
it has a completely filled
d
-orbital that prevents
d-d
overlapping of orbitals
Correct
Wrong
Skipped
D
it has a completely filled
d
-orbital that causes
d-d
overlapping
Re-attempt
-
Correct (
-
)
Wrong (
-
)
Skipped (
-
)
1
2
3
4
5
6
7
8
9
10
Re-attempt
-
Correct (
-
)
Wrong (
-
)
Skipped (
-
)
1
2
3
4
5
6
7
8
9
10
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