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

fuel, food preservation, nutrition, medicine, detergents and fertilizers PRACTICE TEST [3 - EXERCISES]

set 1

set 2

set 3

Question : 11 [PSC (Pre) 2018]

For the preservation of fruit juice which of the following is used?

a) Formic acid

b) Sulphuric acid

c) Acetic acid

d) Sodium Benzoate

Answer: (d)

Question : 12 [UPPCS (Mains) 2015]

The most suitable crop for green manuring is

a) Sunhemp

b) Potato

c) Sugarcane

d) Gram

Answer: (a)

Question : 13 [UPPCS (Pre) 1998]

To avoid ‘knocking’ of the engine of a car, which one of the following is used as anti-knocking agent?

a) Lead Tetra Ethyl

b) Ethyl alcohol

c) Butane

d) White Petrol

Answer: (a)

Question : 14 [UPPCS (Spl)(Mains) 2008]

Which form of nitrogen is available in urea?

a) Nitrate

b) Amide

c) Ammoniacal

d) Nitrite

Answer: (b)

Question : 15 [UPPCS (Pre) 1992]

Diesel used in heavy vehicles for

a) High power and financially secure

b) Extra mileage and save engine

c) Low expense and save the fuel

d) Being cheaper than low petrol

Answer: (a)

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