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

Question : 16 [UPPCS (Mains) 2012]

Which one of the following acids is present in sour milk products?

a) Butyric acid

b) Tartaric acid

c) Acetic acid

d) Lactic acid

Question : 17 [BPSC (Pre) 2005]

Aspirin is obtained from

a) Earth

b) A tree

c) Petroleum

d) Chemical reaction of acids

Question : 18 [UP (Pre) 2009]

Octane number is a measure of the quality of

a) Kerosene oil

b) Edible oils

c) Petrol

d) Perfumed oil

Question : 19 [IAS (Pre) 2015]

What can be the impact of the excessive/inappropriate use of nitrogenous fertilizers in agriculture?

1. The proliferation of nitrogenfixing microorganisms in soil can occur.
2. The increase in the acidity of soil can take place.
3. Leaching of nitrate to the ground water can occur.

a) Only 2 and 3

b) Only 1 and 3

c) Only 2

d) 1, 2 and 3

Question : 20 [UP (Pre) 2004]

Milk openly placed for sometime becomes sour due to

a) Lactic acid

b) Citric acid

c) Carbonic acid

d) Acetic acid