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🛠️ JEE🧪 Chemistry

At \( 35^{\circ} \mathrm{C} \), the vapour pressure of \( \mathrm{CS}_{2} \) is \( 512 \mathrm{~mm} \mathrm{Hg} \) and t…

Q1

At \( 35^{\circ} \mathrm{C} \), the vapour pressure of \( \mathrm{CS}_{2} \) is \( 512 \mathrm{~mm} \mathrm{Hg} \) and that of acetone is \( 344 \mathrm{~mm} \mathrm{Hg} \). A solution of \( \mathrm{CS}_{2} \) in acetone has a total vapour pressure of \( 600 \mathrm{~mm} \mathrm{Hg} \). The false statement amongst the following is:

a

heat must be absorbed in order to produce the solution at \( 35^{\circ} \mathrm{C} \)

b

Raoults law is not obeyed by this system

c

a mixture of \( 100 \mathrm{~mL} \mathrm{~CS}_{2} \) and \( 100 \mathrm{~mL} \) acetone has a volume \( <200 \mathrm{~mL} \)

d

\( \mathrm{CS}_{2} \) and acetone are less attracted to each other than to themselves.

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