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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 2 and 3
Question-2
Pure zinc is attacked by
(A)
Water
(B)
Dilute acid
(C)
Air
(D)
None of these
Question-3
Mac Arthur Forrest Cyanide Process is used in the extraction of
(A)
Gold
(B)
Silver
(C)
Copper
(D)
Both and b
Question-4
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-5
With action of air and moisture copper gets covered with layer of
(A)
red cuprous oxide
(B)
cuprous sulphate
(C)
black cuprous oxide
(D)
copper carbonate
Question-6
The general electronic configuration of transition elements is
(A)
(n-1)d
1-10
ns
1-2
(B)
(n-1)d
1-9
ns
1-2
(C)
(n-1)d
1-7
ns
1-2
(D)
(n-1)d
1-8
ns
1-2
Question-7
Which transition element has the highest atomic number?
(A)
Ru
(B)
Uun
(C)
Uub
(D)
Uuu
Question-8
Which of the following compounds is not coloured?
(A)
Na
2
CuCl
4
(B)
Na
2
CdCl
4
(C)
K
4
[Fe(CN)
6
]
(D)
K
3
[Fe(CN)6]
Question-9
Which of the ions will give colourless aqueous solution?
(A)
Ni
2+
(B)
Fe
2+
(C)
Cu
2+
(D)
Cu
+
Question-10
For a transistion metal ion, the effective magnetic moment in BM is given by the formula
(A)
(B)
(C)
(D)
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Plus 2 Computer Science
Tamil Nadu (English Medium)
Practice in Related Chapters
Periodic Classification - II
Coordination Compounds and Bio-Coordination Compounds
p - Block Elements
Biomolecules
Electrochemistry
Chemical Kinetics
Surface Chemistry
Hydroxy Deratives
Isomerism in Organic Chemistry
Nuclear Chemistry
Termodynamics-II
Solid State II
Chemical Equilibrium-II
Purification of Organic Compounds
Ether
Carbonyl Compounds
Atomic Structure
f - Block Elements
d - Block Elements
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