set 1 MCQ Questions & Answers Detailed Explanation

Question : 1

What is detergent?

a) Medicine

b) Catalyst

c) Soap

d) Refining agent

Question : 2

Consider the following features of newer models of motor cars.

1. Radial tyres
2. Streamlined body
3. Multipoint fuel injection
4. Catalytic converter with exhaust

a) 2, 3 and 4

b) 1 and 2

c) 2 and 3

d) 1, 3 and 4

Question : 3

Gasohol is a mixture of

a) Gasoline and Propanol

b) Gasoline and Methanol

c) Gasoline and Ethanol

d) Methanol and Ethanol

Question : 4

Milk openly placed for sometime becomes sour due to

a) Lactic acid

b) Citric acid

c) Carbonic acid

d) Acetic acid

Question : 5

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 : 6

Octane number is a measure of the quality of

a) Kerosene oil

b) Edible oils

c) Petrol

d) Perfumed oil