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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