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What happens when metals like potassium and sodium react with cold water?

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The potassium oxide and sodium oxide is evolved

The potassium hydroxide and sodium hydroxide is evolved

Nothing happens

Hydrogen is evolved and catches fire

answer is C.

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Detailed Solution

Metals like potassium and sodium react violently with cold water. In the case of sodium and potassium, the reaction is so violent and exothermic that the evolved hydrogen immediately catches fire.

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