1.

In each of the following questions, a statementof Assertion is given followed by a corresponding statementof Reason just below it. Of the statements, mark the correctanswer as Assertion . The vapour pressure of a pure liquid has a fixed value at a particular temperature . Reason . When equilibrium is reached , no more vapour are formed .

Answer»

If both ASSERTION and REASON are true, and reason is the true explanation of the assertion .
If both assertion and reason are true but reason is the true explanation of the assertion .
If assertion is true, but reason is FALSE.
If both assertion and reason are false .

Solution :Correct R . When equilibrium is REACHED , rate of evaporation becomes equal to rate ofcondensation . Vapours are formed but same amount condenses in the same time.


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