PG TRB Chemistry Previous Year Question Papers with Answers Pdf - 2
Question: 6
The Law of Definite proportion was enunciated by
(A) Thomson
(B) Reitcher
(C) Lavoisier
(D) Proust
Ans: D
Proust
Question: 7
The negatively charged particle, electron was discovered by
(A) J.J. Thomson
(B) Bohr
(C) John Dalton
(D) Crooke
Ans: A
J.J. Thomson
Question: 8
Another allotrope of carbon discovered in 1985 is
(A) Buckminster fullerene
(B) Methane
(C) Diamond
(D) Graphite
Ans: A
Buckminster fullerene
Question: 9
‘No two electrons in an atom can have the same set of four quantum number’ is
(A) Bohr’s law
(B) Aufbau principle
(C) Newton’s law
(D) Pauli’s exclusion principle
Ans: D
Pauli’s exclusion principle
Question: 10
Scattering of light takes place in
(A) Colloidal solution
(B) Electroplating
(C) Solution of electrolyte
(D) Electrolysis
Ans: A
Colloidal solution
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