Question

What will be the correct order of vapour pressure of water,acetone and ether at ${30}^{\circ }C$. Given that among these compounds, water has maximum boiling point and ether has minimum boiling point?

• A. Water < ether < acetone
• B. Water < acetone < ether
• C. Ether < acetone < water
• D. Acetone < ether < water

Answer 1

The correct option is B Water < acetone < ether

The compound with higher boiling point will have lower vapour pressure and the compound with lower boiling point will have higher vapour pressure.
The correct order of boiling points is $Water>acetone>ether$.
The correct order of vapour pressure is $Water<acetone<ether$.