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Question-1
Copper is extracted from
(A)
cuprite
(B)
copper glance
(C)
malachite
(D)
copper pyrites
Question-2
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-3
Copper is used for
(A)
electroplating
(B)
calorimeters
(C)
electric cables
(D)
all of the above
Question-4
The elements exhibiting maximum oxidation states are in ____ of transition series.
(A)
Start
(B)
End
(C)
Middle
(D)
All of the above
Question-5
For a transistion metal ion, the effective magnetic moment in BM is given by the formula
(A)
(B)
(C)
(D)
Question-6
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-7
The elements in the beginning of the series exhibit fewer oxidation states because they have
(A)
too many d electrons
(B)
fewer vacant d-orbital
(C)
lesser d electrons
(D)
none of these
Question-8
Formation of coloured ions is possible when compounds contains
(A)
paired electrons
(B)
unpaired electrons
(C)
lone pairs of electrons
(D)
none of the above
Question-9
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-10
The transition elements in higher oxidation states form
(A)
Covalent Bond
(B)
Ionic bond
(C)
Both a and b
(D)
None of the above
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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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