TNPSC Chemistry GK Questions 2020-2021 - 1

Question: 1

Liquefied Petroleum gas (LPG) consists of mainly

(A) Methane, Ethane and Hexane

(B) Etahne, Hexane and Nonane

(C) Methane, Butane and Propane

(D) Methane, Hexane and Nonane

Ans: C

Methane, Butane and Propane

Question: 2

Oxygen and Ozone are

(A) Allotropes

(B) Isotopes

(C) Isomers

(D) Isobars

Ans: A


Question: 3

Which one among the following polymers is used for making bulletproof material?

(A) Polyamide

(B) Polyethylene

(C) Polyvinyl chloride

(D) Polystyrene

Ans: B


Question: 4

Which of the following acid is to be found in the vinegar?

(A) Acetic acid

(B) Citric acid

(C) Oxallic acid

(D) Hydrochloric acid

Ans: A

Acetic acid

Question: 5

An element of atomic no. 29 belongs to

(A) p-block

(B) s-block

(C) d-block

(D) f-block

Ans: C


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