set 2 MCQ Questions & Answers Detailed Explanation

Question : 1

Organic food is supposed to be better for us because it

a) is more expensive to buy

b) is grown in glasshouses keeping it clean of environmental pollutants

c) relies on chemicals to improve the flavour

d) is grown without the use of artificial fertilizers and pesticides

Question : 2

Indane gas is a mixture of

a) Butane and Propane

b) Butane and Hydrogen

c) Butane and Oxygen

d) Methane and Oxygen

Question : 3

CNG is

a) Condensed Nitrogen Gas

b) Compressed Natural Gas

c) Cyanogen Natural Gas

d) Controlled Natural Gas

Question : 4

Which of the following is a natural fuel?

a) Coke

b) Coal gas

c) Tar

d) Petroleum

Question : 5

Assertion (A):
Chemical fertilizers are necessary for the phosphorus need of plants.
Reason (R):
One metric tonne of organic manure can barely supply 2 or 3 kg of phosphorus.
From the above statement, which is correct?

a) (A) is true, but (R) is false

b) Both (A) and (R) are true and (R) is the correct explanation of (A)

c) Both (A) and (R) are true, but (R) is not the correct explanation of (A)

d) (A) is false, but (R) is true

Question : 6

Which one of the following is used in food preservation?

a) Acetylene

b) Benzoic Acid

c) Sodium Carbonate

d) Sodium Chloride