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Atoms, Molecules, and Nuclear Chemistry CDS Questions
CDS SYLLABUS
CDS Chemistry
Matter and Its Composition
Atoms, Molecules, and Nuclear Chemistry
Elements Classification and Chemical Bonding
Important Chemical Reactions and Processes
Acids, Bases, and Salts
Metals, Non-Metals, and Reactivity Order of Metals
Organic Chemistry
Environmental Chemistry
Important Alloys and Their Components
Atoms, Molecules, and Nuclear Chemistry MCQ Questions
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13.
According to Einstein, when a _____ of sufficient energy strikes an electron in the atom of the metal, it transfers its energy instantaneously to the electron during the collision and the electron is ejected without any time lag or delay
A.
Tritium
B.
Photon
C.
Neutron
D.
Electron
😑
View Answer
Rough Work
Error
ANSWER
:
B. Photon
14.
Hydrogen atom consisting of only one proton is called _____
A.
Chlorine
B.
Tritium
C.
Deuterium
D.
Protium
😑
View Answer
Rough Work
Error
ANSWER
:
D. Protium
15.
Atoms, molecules or ions that have absorbed radiation are said to be _____
A.
Detached
B.
Attached
C.
Excited
D.
Released
😑
View Answer
Rough Work
Error
ANSWER
:
C. Excited
16.
The negative sign means that the energy of the electron in the hydrogen atom is _____ than the energy of a free electron at rest.
A.
Higher
B.
Lower
C.
Forward
D.
Backward
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View Answer
Rough Work
Error
ANSWER
:
B. Lower
17.
_____ model of the hydrogen atom, therefore, not only ignores dual behaviour of matter but also contradicts Heisenberg uncertainty principle
A.
Boyle
B.
Chadwick
C.
Thomson
D.
Bohr
😑
View Answer
Rough Work
Error
ANSWER
:
D. Bohr
18.
The hydrogen atom containing 1 proton and 1 neutron is called _____
A.
Deuterium
B.
Protium
C.
Tritium
D.
Nitrogen
😑
View Answer
Rough Work
Error
ANSWER
:
A. Deuterium
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