
Combustion and Flame
Authored by Srivathsa Rachakonda
Science
8th Grade
Used 11+ times

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14 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Burning of coal and diesel releases an extremely suffocating and corrosive gas called:
Hydrogen
Sulphur dioxide
Carbon dioxide
Oxides of Nitrogen
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
For fires involving oil and petrol, which fire extinguisher will be suitable?
Sodium Bicarbonate
Water
Carbon dioxide
Carbon Monoxide
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An ideal fuel is:
Cheap, readily available
having high calorific value
All of these
rapidly combustible
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Explosion is a sudden chemical reaction that takes place with the evolution of a large amount of:
Light
Sound
Gases
Heat
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Carbon fuels like wood, coal, petroleum release in burnt carbon particles dangerous pollutants causing respiratory problems.
True
False
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Oxides of sulphur and dissolve in rainwater and form acid rains.
True
False
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Carbon dioxide as fire extinguisher not only forms a blanket around the fire, it also brings down the temperature of the fuel.
False
True
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