Question

When calcium metal is added to water the gas evolved does not catch fire but at the same gas evolved on adding sodium metal to water catches fire

Answer 1

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$\bf\Huge\red{\mid{\overline{\underline{ ANSWER }}}\mid }$

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$\Large\fbox{\color{purple}{QUESTION}}$

when calcium metal is added to water the gas evolved does not catch fire but at the same gas is evolved on adding sodium metal to water catches fire

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$\Large\fbox{\color{purple}{ SOLUTION }}$

★ REASON ★

when calcium metal is added to water the hydrogen gas is evolved does not catch fire because the reaction of calcium with water is less violent and the heat evolved is not sufficient for hydrogen gas to catch fire but the same gas evolved on adding sodium metal to water catches fire because the reaction is very very violent and highly exothermic and the heat evolved is sufficient for hydrogen gas to catch fire

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