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Question-1
The chief ore of zinc is
(A)
Calamine
(B)
Zincite
(C)
Zinc blende
(D)
all of the above
Question-2
The correct statement in respect of d-block elements is
(A)
They are all metals.
(B)
They show variable valency.
(C)
They form coloured ions and complex salts.
(D)
All above statement are correct.
Question-3
Which is not a property of copper?
(A)
high lustre
(B)
low melting point
(C)
reddish brown
(D)
high density
Question-4
Pure zinc is attacked by
(A)
Water
(B)
Dilute acid
(C)
Air
(D)
None of these
Question-5
Argentine the chief ore of silver is denoted as
(A)
AgCl
(B)
Ag
2
S
(C)
Sb
2
S
3
(D)
Ag
2
S,Sb
2
S
3
Question-6
The chief ore of silver is
(A)
Silver glance
(B)
Horn silver
(C)
Ruby silver
(D)
Pyragyrite
Question-7
All the transition elements are
(A)
Non-metals
(B)
Gases
(C)
Metals
(D)
Metals and non-metals
Question-8
Which transition element has the highest atomic number?
(A)
Ru
(B)
Uun
(C)
Uub
(D)
Uuu
Question-9
Which of the following has the maximum number of unpaired electrons?
(A)
Mn
2+
(B)
Ti
3+
(C)
V
3+
(D)
Fe
2+
Question-10
Spitting of silver is prevented by
(A)
treating it with borax
(B)
treating with zinc dust
(C)
covering with a layer of charcoal
(D)
Both b and c
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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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