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Question-1
Copper gets covered with a green layer due to
(A)
Heat
(B)
presence of CO
2
(C)
Moisture
(D)
Both b and c
Question-2
The chemical composition of slag formed during the smelting process in the extraction of copper is
(A)
Cu
2
O + FeS
(B)
FeSiO
3
(C)
CuFeS
2
(D)
Cu
2
S + FeO
Question-3
Which among the following is a property of zinc?
(A)
greenish white
(B)
bad conductor of heat
(C)
non malleable
(D)
ductile
Question-4
Which of the ions will give colourless aqueous solution?
(A)
Ni
2+
(B)
Fe
2+
(C)
Cu
2+
(D)
Cu
+
Question-5
Transition elements are classified into how many series?
(A)
3
(B)
4
(C)
5
(D)
6
Question-6
The most malleable and ductile metal is
(A)
Silver
(B)
Copper
(C)
gold
(D)
Zinc
Question-7
Which of the following is used for dental filling?
(A)
Silver amalgam
(B)
Silver salt
(C)
Silver leaf
(D)
Silver Bromide
Question-8
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
Question-9
Which of the following is used in medicine?
(A)
Silver amalgam
(B)
Silver salt
(C)
Silver leaf
(D)
Silver Bromide
Question-10
The transition elements in lower oxidation states (+2 and +3) generally form
(A)
Ionic bonds
(B)
Covalent bonds
(C)
Both a and b
(D)
No bonding
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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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