TNPSC Chemistry Study Material in English Pdf - 2

Question: 6

An element which is preserved under water is

(A) Sulphur

(B) Sodium

(C) Red phosphorous

(D) White phosphorous

Question: 7

Which of the following carbon compounds is used as a fire extinguisher?

(A) Chloroform

(B) Methyl chloride

(C) Carbon disulphide

(D) Carbon tetrachloride

Question: 8

_____ discovered inert gases.

(A) Henery

(B) Ramse

(C) Pristle

(D) Cauvendish

Question: 9

A mixture of water and alcohol can be separated by

(A) Distillation

(B) Evaporation

(C) Filtration

(D) Decantation

Question: 10

Galvanised iron sheets have a coating of

(A) Chromium

(B) Lead

(C) Tin

(D) Zinc