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Question-1
The compound used as smoke screen
(A)
PCl
3
(B)
PCl
5
(C)
PH
3
(D)
H
3
PO
3
Question-2
The natural abundance of which of the below elements in earth’s crust is relatively low?
(A)
As
(B)
Bi
(C)
Sb
(D)
All of the above
Question-3
Which is not known?
(A)
XeF
6
(B)
XeF
4
(C)
XeO
3
(D)
ArF
6
Question-4
Lead is used as
(A)
Telephone wires
(B)
Additive to petrol
(C)
For making alloys
(D)
All of the above
Question-5
Very pure lead is obtained by
(A)
Park’s process
(B)
Pattinson’s process
(C)
Both a and b
(D)
Electrolytic refining
Question-6
Which of the phosphorus oxy acids have garlic taste?
(A)
H
3
PO
4
(B)
H
3
PO
3
(C)
H
4
P
2
O
7
(D)
None of these
Question-7
Which 4 elements are called as ore forming elements?
(A)
Po,Te,Se,S
(B)
O,S,Se,Te
(C)
O,S,Se,Po
(D)
Se,Te,S,Po
Question-8
Which is not an ore of Pb?
(A)
Alum
(B)
Galena
(C)
Cerrusite
(D)
Anglesite
Question-9
Which one is a dibasic acid?
(A)
H
3
PO
4
(B)
H
3
PO
3
(C)
Both a and b
(D)
None of these
Question-10
The shape of PCl
3
is
(A)
pyramidal
(B)
trigonal bipyramidal
(C)
linear
(D)
tetrahedral
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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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