PDF chapter test TRY NOW
Fill in the blanks.
(a). A process in which a substance reacts with to give off heat
is called combustion.
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 gave very ignition temperature and can easily catch fire with a flame are called substances.
(e). The substances which vaporise during give flame.
Answer variants:
ignition
sheet
oxygen
low
burning
lowest
inflammable
blanket
flammable
carbon dioxide
fire
chemical
high
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