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Home
D and F Block Elements Test - 20
D and F Block Elements Test - 20
Result
D and F Block Elements Test - 20
/
Score
-
Rank
Time Taken:
-
Question
1/10
4 / -1
Due to lanthanide contraction
Correct
Wrong
Skipped
A
Fe, Co, Ni have equal size
Correct
Wrong
Skipped
B
Zr and Hf have equal size
Correct
Wrong
Skipped
C
all
f
-block ions have equal size
Correct
Wrong
Skipped
D
all isoelectric ions have equal size
Question
2/10
4 / -1
The lanthanoid which exhibits + 4 oxidation
Correct
Wrong
Skipped
A
Pm
Correct
Wrong
Skipped
B
Sm
Correct
Wrong
Skipped
C
Ce
Correct
Wrong
Skipped
D
Gd
Question
3/10
4 / -1
What elements are present in
f
-block series?
Correct
Wrong
Skipped
A
Lanthanoids
Correct
Wrong
Skipped
B
Actinoids
Correct
Wrong
Skipped
C
Lanthanoids and actinoids
Correct
Wrong
Skipped
D
Lipids
Question
4/10
4 / -1
What are lanthanides and actinides?
Correct
Wrong
Skipped
A
Inner-transition element
Correct
Wrong
Skipped
B
Noble gas
Correct
Wrong
Skipped
C
Normal element
Correct
Wrong
Skipped
D
Transition element
Question
5/10
4 / -1
In context of the lanthanoids, which of the following statements is not correct ?
Correct
Wrong
Skipped
A
There is a gradual decrease in the radius of the members with increasing atomic number in the series
Correct
Wrong
Skipped
B
All the members exhibit +3 oxidation state
Correct
Wrong
Skipped
C
Because of similar properties the separation of lanthanoids is not easy
Correct
Wrong
Skipped
D
Availability of 4
f
-electrons results in the formation of compounds in + 4 state for all members of the series
Question
6/10
4 / -1
Which lanthanide compound is used as a pigment?
Correct
Wrong
Skipped
A
CeO
2
Correct
Wrong
Skipped
B
Ce(OH)
3
Correct
Wrong
Skipped
C
Lu(OH)
3
Correct
Wrong
Skipped
D
Tb(OH)
3
Question
7/10
4 / -1
The point of dissimilarity between lanthanides and actinides is
Correct
Wrong
Skipped
A
three outermost shells are partially filled
Correct
Wrong
Skipped
B
they show oxidation state of + 3 (common)
Correct
Wrong
Skipped
C
they are called inner-transition elements
Correct
Wrong
Skipped
D
their are radioactive in nature
Question
8/10
4 / -1
Most common oxidation states of Ce (cerium) are
Correct
Wrong
Skipped
A
+3, +4
Correct
Wrong
Skipped
B
+2, +3
Correct
Wrong
Skipped
C
+2, +4
Correct
Wrong
Skipped
D
+3, +5
Question
9/10
4 / -1
The most stable oxidation state of lanthanides is
Correct
Wrong
Skipped
A
+ 2
Correct
Wrong
Skipped
B
+ 4
Correct
Wrong
Skipped
C
0
Correct
Wrong
Skipped
D
+ 3
Question
10/10
4 / -1
Which of the following has got incompletely filled
f
-subshell '?
Correct
Wrong
Skipped
A
Gadolinium
Correct
Wrong
Skipped
B
Lutetium
Correct
Wrong
Skipped
C
Lawrencium
Correct
Wrong
Skipped
D
Tantalum
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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