TNPSC Group 1, 2  Chemistry Question Paper with Answers - 1

Question: 1

Which of the toxic heavy metals is found in modern tannery industries?

(A) Lead

(B) Zinc

(C) Nickel

(D) Chromium

Ans: D


Question: 2

Which of the following is not known as greenhouse gas?

(A) Hydrogen

(B) Methane

(C) Carbon dioxide

(D) Nitrous oxide

Ans: A


Question: 3

The first synthetic fiber made by man was

(A) Polyester

(B) Reyon

(C) Nylon

(D) Terycot

Ans: C


Question: 4

Which one of the following gases is supporter of combustion?

(A) Oxygen

(B) Hydrogen

(C) Carbon dioxide

(D) Nitrogen

Ans: A


Question: 5

Which of the following is the lightest gas?

(A) Ammonia

(B) Nitrogen

(C) Hydrogen

(D) Carbon dioxide

Ans: C


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