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Combustion and Flame MCQ

The document contains a series of multiple-choice questions related to combustion and flame, covering topics such as the nature of combustion, types of fuels, ignition temperature, and the products of combustion. It includes questions about the combustion process in the sun, the characteristics of different fuel types, and the zones of a flame. The content is designed to test knowledge on the principles of combustion and related chemical processes.

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66 views1 page

Combustion and Flame MCQ

The document contains a series of multiple-choice questions related to combustion and flame, covering topics such as the nature of combustion, types of fuels, ignition temperature, and the products of combustion. It includes questions about the combustion process in the sun, the characteristics of different fuel types, and the zones of a flame. The content is designed to test knowledge on the principles of combustion and related chemical processes.

Uploaded by

sonisaurya8840
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Combustion and Flame

DPP-1
1. Which substance give heat and light after combustion
a. Flame b. Fuel
c. Combustion d. None of these
2. 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
3. Coal burns with ______
a. Flame b. Only glow
c. Both flame and glow d. None of these
4. Burning of charcoal in a closed room will produce
a. Carbon dioxide b. Nitrogen dioxide
c. Carbon monoxide d. All of these
5. 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
6. CNG and LPG are the examples of
a. Solid fuels b. Liquid fuels
c. Gaseous fuels d. They are not fuels
7. Ignition temperature is
a. Lowest temperature at catch fire b. Higher temperature at catch fire
c. Any temperature d. None of these
8. Combustion is a
a. Chemical process b. Physical process
c. Both of these processes d. None of these processes
9. The products of combustion are
a. Carbon dioxide and water b. Oxygen and water
c. Only carbon dioxide d. Only oxygen
10. There are following zones of a flame
a. Two b. Three
c. Four d. No any zone
11. In non-luminous zone, the wax vapours burn in the presence of________.
a. Soil b. Water
c. Air d. Ice
12. What do we call the innermost zone or zone of no combustion?
a. Combustion Zone b. Luminous Zone
c. Dark Zone d. Inflammable Area
13. Which of the following is the hottest zone?
a. Middle Zone b. Outermost Zone
c. Innermost Zone d. All of these
14. Which type of fuels leave maximum residue or ash after combustion?
a. Solid fuels b. Liquid fuels
c. Gaseous fuels d. None of these
15. What do we call the fuels that are present in a finite amount?
a. Renewable fuels b. Non-renewable fuels
c. Luminous fuels d. Non-luminous fuels
16. In the sun, light and heat are produced by:
a. Chemical reactions b. Nuclear reactions
c. Burning reactions d. Bunsen burner
17. Which chemical is used in the rubbing surface provided for matchsticks?
a. Sulphur b. Gold
c. Red phosphorus d. White phosphorus

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