Assertion :Water can be made boiling without heating. Reason: A decrease in external pressure to the vapour pressure of water at room temperature causes boiling of water.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Assertion is incorrect but Reason is correct

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Option (A) is correct explanation is the correct reason for the statement.
At room temperature, if pressure is reduced until the boiling point at that pressure drops below the fixed temperature so that it comes equal to or less than the vapor pressure of water then boiling will start, as water from any part of the container can form the bubbles and escape to the surroundings.

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