TRB Polytechnic Model Question Paper for Chemistry - 5

Question: 21

The percentage of carbon dioxide in the atmosphere is

(A) 0.03

(B) 21

(C) 78

(D) 0.95

Question: 22

The fundamental building blocks of matter are

(A) Atoms

(B) Electrons

(C) Cells

(D) Molecules

Question: 23

Which of the following is not a reducing sugar?

(A) Fructose

(B) Sucrose

(C) Glucose

(D) None of these

Question: 24

A solution which obey Raoult’s law is

(A) Saturated

(B) Molar

(C) Normal

(D) Ideal

Question: 25

Which noble gas was discovered in chromosphere of the sun?

(A) Radon

(B) Xenon

(C) Neon

(D) Helium