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Question-1
The electronic configuration of Actinides is
(A)
[Rn]5f
0-14
6d
0
7s
0
(B)
[Rn]5f
0-14
6d
0-2
7s
0
(C)
[Rn]5f
0-14
6d
0-2
7s
1
(D)
[Rn]5f
0-14
6d
0-2
7s
2
Question-2
Which among the following is true?
(A)
Lanthanide ions are mostly coloured
(B)
5f shielding is greater
(C)
binding of 4f electrons is lower
(D)
Lanthanides are paramagnetic
Question-3
The cause of actinide contraction is
(A)
perfect shielding by 5f electrons
(B)
perfect shielding by 4f electrons
(C)
imperfect shielding by 4f electrons
(D)
imperfect shielding by 5f electrons
Question-4
5f block elements are
(A)
Lanthanides
(B)
Metals
(C)
Transition elements
(D)
Actinides
Question-5
Lanthanides are extracted from
(A)
Limonite
(B)
Monazite
(C)
Magnetite
(D)
Cassiterite
Question-6
Alloys of Lanthanides are called as
(A)
Mish-metals
(B)
Metalloids
(C)
Plate metals
(D)
Actinides
Question-7
Which is the most common oxidation state of Actinides?
(A)
+2
(B)
+3
(C)
+4
(D)
+6
Question-8
The elements in which the extra electron enters (n-2)f orbitals are called
(A)
s block elements
(B)
p block elements
(C)
d block elements
(D)
f block elements
Question-9
All elements of which series is radioactive?
(A)
Actinide
(B)
Lanthanide
(C)
Both a and b
(D)
None of these
Question-10
Maximum oxidation state exhibited by Lanthanides is
(A)
+1
(B)
+2
(C)
+3
(D)
+4
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Plus 2 Biology Science
Tamil Nadu (English Medium)
Practice in Related Chapters
Periodic Classification - II
f - block Elements
d - block Elements
Atomic Structure
Coordination Compounds and Bio-coordination Compounds
p - Block Elements
Biomolecules
Electrochemistry
Chemical Kinetics
Surface Chemistry
Carbolic Acids
Chemistry in Action
Hydroxy Deratives
Isomerism in Organic Chemistry
Nuclear Chemistry
Termodynamics-II
Solid State II
Chemical Equilibrium-II
Purification of Organic Compounds
Ether
Carbonyl Compounds
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