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Elements and Compounds TNPSC Group 2 2A Questions
TNPSC Group 2 2A SYLLABUS
Chemistry
Elements and Compounds
Acids, Base and Salts
Petroleum Products
Fertilizers and Pesticides
Elements and Compounds MCQ Questions
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13.
The chemical property of elements are related to their
A.
atomic weight
B.
atomic number
C.
number of neutrons in the nucleus
D.
valency
😑
View Answer
Rough Work
Error
ANSWER
:
D. valency
14.
The inner transition element among the following is
A.
scandum
B.
Lanthanam
C.
titanium
D.
cesium
😑
View Answer
Rough Work
Error
ANSWER
:
B. Lanthanam
15.
The only element which is NOT containing neutrons in its nucleus is
A.
berylium
B.
helium
C.
an isotope of hydrogen
D.
an isotope of sodium
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View Answer
Rough Work
Error
ANSWER
:
C. an isotope of hydrogen
16.
The Element with the maximum number of stable isotopes in nature is ____
A.
carbon
B.
Tin
C.
hydrogen
D.
lead
😑
View Answer
Rough Work
Error
ANSWER
:
B. Tin
17.
Which one of the following is a transition element?
A.
Helium
B.
Sodium
C.
Copper
D.
Fluorine
😑
View Answer
Rough Work
Error
ANSWER
:
C. Copper
18.
Element which is an enemy of copper is
A.
sulphur
B.
carbon
C.
chlorine
D.
nitrogen
😑
View Answer
Rough Work
Error
ANSWER
:
A. sulphur
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