fuel, food preservation, nutrition, medicine, detergents and fertilizers - Category wise Question and Answer Practice Test with Solutions

Question : 6 [UPPCS (Mains) 2016]

Which of the following fossil fuels is the cleanest fuel?

a) Natural gas

b) Coal

c) Petrol

d) Diesel

Question : 7 [PSC (Pre) 2018]

Which one of the following is used in food preservation?

a) Acetylene

b) Benzoic Acid

c) Sodium Carbonate

d) Sodium Chloride

Question : 8 [UP (Pre) 1998]

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 : 9 [UPPCS (Pre) 1990]

Which of the following is a natural fuel?

a) Coke

b) Coal gas

c) Tar

d) Petroleum

Question : 10 [UPPCS (Pre) 2016]

The plants receive Nitrogen in form of

a) Ammonia

b) Nitric oxide

c) Nitrate

d) Nitride