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Combustion

The substance...

Question

The substance which undergoes combustion is called ________.

A

fuel

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B

non-inflammable

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C

combustible

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D

Both

A

&

C

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Solution

The correct option is C Both $A$ & $C$
The substance that undergoes combustion is said to be combustible. It is also called fuel. During combustion, a chemical change occurs. The substance reacts with oxygen and releases heat. Hence, the substance acts as fuel. A combustible substance is one that readily undergoes combustion.

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Similar questions

Q. A substance that can not undergo combustion is called a non-combustible substance.

Q. A substance that can undergo combustion is called a combustible substance.

Q. Fill in the blanks using the words given in the box.

ignition, petrol, combustion, calorific value, combustible, inflammable

(a) A chemical process in which a substance reacts with oxygen to give off heat is called ______.
(b) Wood, paper, CNG are __________ substances.
(c) The lowest temperature at which a substance catches fire is called its ______ temperature.
(d) Ignition temperature of _______ is lower than that of wood.
(e) The substances which have very low _______ temperature and can easily catch fire with a flame are called _______ substances.
(f) The amount of heat energy produced on complete combustion of 1kg of a fuel is called its ______.

Q. Question 26
Fill in the blanks using the words given in the box.

(a) A chemical process in which a substance reacts with oxygen to give off heat is called ___
(b) Wood, paper, CNG are ___ substances.
(c) The lowest temperature at which a substance catches fire is called its ___ temperature.
(d) Ignition temperature of ___ is lower than that of wood.
(e) The substances which have very low ___ temperature and can easily catch fire with a flame are called ___ substances.
(f) The amount of heat energy produced on complete combustion of 1kg of a fuel is called its ___.

Q. What is the combustion product of an organic substance that undergoes complete combustion?

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