Question

9 question a part please answer
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Answer 1

the part ist having water in cup cant catch fire Water can contribute to a fire through other reactions like the reaction of water with reactive metals (like alkali metals, magnesium and others), which generates flammable hydrogen ( ) but that's not really the water itself contributing to the fire. But Hydrogen can catch alone

2)The inflammable substances are the substances that easily catch fire. There are many examples available for inflammable substances that includes paper, LPG, ethanol, petrol and much more. There is an extreme care required while handling the inflammable substances.