set 2 MCQ Questions & Answers Detailed Explanation

Question : 1

Which one of the following substances is used in glazing the pottery?

a) Calomel

b) Zinc oxide

c) Alum

d) Zinc chloride

Question : 2

Poisonous mustard gas is a

a) Solid

b) Gas

c) Liquid

d) None of these

Question : 3

Which is the fundamental element of all organic compounds?

a) Carbon

b) Nitrogen

c) Oxygen

d) Brimstone

Question : 4

Which of the following is not a natural polymer?

a) Starch

b) Cotton

c) Ghee

d) Protein

Question : 5

Which one of the following sets of elements was primarily responsible for the origin of life on the Earth?

a) Oxygen, Calcium, Phosphorus

b) Hydrogen, Oxygen, Sodium

c) Carbon, Hydrogen, Nitrogen

d) Carbon, Hydrogen, Potassium

Question : 6

Which of the following gas mixture is used in welding gas?

a) Hydrogen and Oxygen

b) Acetylene and Hydrogen

c) Oxygen and Acetylene

d) Hydrogen and Helium