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Question

At higher altitudes the boiling point of liquid is lowered because :

A
temperature is low
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B
pressure is high
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C
temperature is high
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D
atmospheric pressure is low
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Solution

The correct option is D atmospheric pressure is low
A liquid reaches its boiling point when its vapor pressure is equal to the atmosphere around it.
Because the presence of solute lower the vapor pressure, the boiling point is raised

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