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Question-1
Which is the most common oxidation state of Actinides?
(A)
+2
(B)
+3
(C)
+4
(D)
+6
Question-2
f- block elements are also called as
(A)
inner transition elements
(B)
transition elements
(C)
rare earth elements
(D)
both a and c
Question-3
Lanthanides are separated by
(A)
Fractional distillation
(B)
Steam distillation
(C)
Fractional Crystallisation
(D)
Sublimation
Question-4
The Lanthanides contraction is due to
(A)
Perfect shielding of 4f electron
(B)
Imperfect shielding of 4f electron
(C)
Perfect shielding of 3d electron
(D)
Imperfect shielding of 3d electron
Question-5
Alloys of Lanthanides are called as
(A)
Mish-metals
(B)
Metalloids
(C)
Plate metals
(D)
Actinides
Question-6
Maximum oxidation state exhibited by Lanthanides is
(A)
+1
(B)
+2
(C)
+3
(D)
+4
Question-7
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-8
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-9
Metallothermic processes involving Lanthanides are called as
(A)
Aluminothermic process
(B)
Lanthanido-thermic process
(C)
Reduction process
(D)
Oxidation process
Question-10
All elements of which series is radioactive?
(A)
Actinide
(B)
Lanthanide
(C)
Both a and b
(D)
None of these
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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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