Question
Question: Assertion : Water kept in an open vessel will quickly evaporate on the surface of the moon. Reason ...
Assertion : Water kept in an open vessel will quickly evaporate on the surface of the moon.
Reason : The temperature at the surface of the moon is much higher than boiling point of water.
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false
If assertion is true but reason is false
Solution
Water quickly evaporates on the Moon due to the extremely low atmospheric pressure (near vacuum), which drastically lowers its boiling point. The assertion is true. The reason states that the Moon's surface temperature is much higher than water's boiling point. If "boiling point" refers to the normal boiling point (100°C), this statement is false because lunar temperatures range from -170°C to +120°C, meaning temperatures are often lower than 100°C. Therefore, the assertion is true, but the reason is false.