Top 500+ TNPSC Group 4 Chemistry Questions and Answers - 2

Question: 6

The IUPAC name of CH₃CH₂CHO is

(A) Propanol

(B) Propanal

(C) Propane

(D) Propanone

Question: 7

Glass is made of the mixture of

(A) Sand and silicates

(B) Quartz and mica

(C) Sand and salt

(D) None of these

Question: 8

The isotope of uranium capable of sustaining chain reactions is

(A) U-235

(B) U-237

(C) U-238

(D) U-239

Question: 9

Among the following elements, which one is not present in a pure sugar?

(A) Oxygen

(B) Nitrogen

(C) Hydrogen

(D) Carbon

Question: 10

_____ is used as filler in rubber tyres.

(A) Nitrogen Oxide

(B) Coal

(C) Coke

(D) Graphite