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Fill in the blanks in the following sentences.

(a) A ____________ process in which a substance reacts with
__________ to give off heat is called combustion.
(b) When the clothes of a person catch __________, the person is
covered with a __________ to extinguish fire.
(c) The __________ temperature at which a substance catches
fire is called its __________ temperature.
(d) The substances which have very ________________ ignition
temperature and can easily catch fire with a flame are called
__________ substances.
(e) The substances which vapourise during __________, give flame.

Science - Exemplar Problems

Chapter 6. Combustion and Flame


(a) physical, oxygen
(b) fire, blanket
(c) lowest, ignition
(d) low, inflammable
(e) burning
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