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Acids, Base and Salts TNPSC Group 1 Questions
TNPSC Group 1 SYLLABUS
Chemistry
Elements and Compounds
Acids, Base and Salts
Petroleum Products
Fertilizers and Pesticides
Acids, Base and Salts MCQ Questions
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1.
All acids essentially contains this element
A.
chlorine
B.
hydrogen
C.
oxygen
D.
sulphur
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Error
ANSWER
:
B. hydrogen
2.
Which is slightly acidic in nature
A.
Acetylene
B.
Ethylene
C.
Ethane
D.
Methane
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Error
ANSWER
:
A. Acetylene
3.
Salicylic acid is prepared by
A.
Perkin's reaction
B.
Kolbe's reaction
C.
Reimer-Tiemann reaction
D.
Hofmann reaction
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ANSWER
:
B. Kolbe's reaction
4.
The pH of a neutral solution is
A.
0
B.
6
C.
7
D.
8
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ANSWER
:
C. 7
5.
pH of pure water is
A.
4
B.
7
C.
12
D.
0
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Error
ANSWER
:
B. 7
6.
The acid which etches glass is
A.
nitric acid
B.
sulphruric acid
C.
hydrofluoric acid
D.
hypochlorous acid
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Rough Work
Error
ANSWER
:
C. hydrofluoric acid
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