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States of Matter — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryStates of Matter1 Mark
MCQ
The vapour pressure is least for?
  • A
    pure water
  • B
    $0.1m$ aqueous urea
  • C
    Both $a$ and $b$
  • ✓
    $0.3m$ aqueous urea
✓

Answer

Correct option: D.
$0.3m$ aqueous urea
Vapour pressure decreases as content of any impurity increases in solution.
$V.P$ will be least for $0.3m$ aq.urea.

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