General Science - Mock Test 22

Question 211

The products of combustion are?

A) Carbon dioxide and water B) Oxygen and water C) Only carbon dioxide D) Only oxygen

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Question 212

Combustion is a?

A) Chemical process B) Physical process C) Both of these processes D) None of these processes

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Question 213

Ignition temperature is?

A) Lowest temperature at catch fire B) Higher temperature at catch fire C) Any temperature D) None of these

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Question 214

CNG and LPG are the examples of?

A) Solid fuels B) Liquid fuels C) Gaseous fuels D) They are not fuels

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Question 215

The substances which have very low ignition temperature will?

A) Catch fire easily B) Will not catch fire C) Catch fire after some time D) None of these

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Question 216

Burning of charcoal in a closed room will produce?

A) Carbon dioxide B) Nitrogen dioxide C) Carbon monoxide D) All of these

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Question 217

Coal burns with ______?

A) Flame B) Only glow C) Both flame and glow D) None of these

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Question 218

Like fuel the sun also provides heat and light. The process taking place in the sun is called?

A) Combustion B) Nuclear process C) Burning D) All of these

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Question 219

Which substance give heat and light after combustion?

A) Flame B) Fuel C) Combustion D) None of these

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Question 220

Which of the following is obtained from coal tar ?

A) Petrol B) Coke C) Air D) Naphthalene balls

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