TNPSC Group 4 Question Paper with Answers 2019-2020 - 2

Question: 6

Which one of the following is not an explosive?

(A) Nitro chloroform

(B) Cyclo trimethylene trinitrotremin

(C) TNG

(D) TNT

Question: 7

In Which one of the following the maximum percentage of Nitrogen is to be found from the mass point of view?

(A) Ammonium sulphate

(B) Ammonium carbonate

(C) Ammonium cyanide

(D) Urea

Question: 8

Polythene is industrially prepared by the polymerization of

(A) Acetylene

(B) Ethylene

(C) Styrene

(D) Methane

Question: 9

Flint glass is obtained from which of the following?

(A) Sand, red lead and potassium carbonate

(B) Zinc and barium borosilicate

(C) Pure silica and zinc oxide

(D) Sodium aluminium borosilicate

Question: 10

Annealing of glass is done in

(A) A closed furnace

(B) An open furnace

(C) A long narrow chamber

(D) A cupel