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The normal boiling point and vapour pres...

The normal boiling point and vapour pressure at `25^(@)C` are measured for liquids in two flasks . Flask a contains pure water and flask B contains a `1.0` M aqueous NaCl solution . Which flask contains the liquid with the higher boiling point ? Which flask contains the liquid with the higher vapour pressure ?
`{:("Higher boiling point" , "Higher vapour pressure"), ((a) "Flask"A , "Flask"A), ((b) "Flask"A , "Flask"B), ((c) "Flask" B , "Flask"A), ((d) "Flask" B , "Flask"B):}`

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The correct Answer is:
C
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