Chemistry · 2013
JEE Main · 23 April 2013, Shift 1 · Q50
Vapour pressure of pure benzene is 119 torr and that of toluene is 37.0 torr at the same temperature. Mole fraction of toluene in vapour phase which…
Vapour pressure of pure benzene is $\displaystyle 119$ torr and that of toluene is $\displaystyle 37.0$ torr at the same temperature. Mole fraction of toluene in vapour phase which is in equilibrium with a solution of benzene and toluene having a mole fraction of toluene $\displaystyle 0.50$ , will be :
Official answer
(2)
$\displaystyle 0.237$
More from Solutions
- The freezing point of benzene decreases by 0.45^° C when 0.2 g of acetic acid is added to 20 g of benzene. If acetic acid associates to form a dimer…2017
- Elements P and Q form two types of non-volatile, non-ionizable compounds PQ and PQ_2. When 1 g of PQ is dissolved in 50 g of solvent 'A', Δ T_b was…2026
- At 363 K, the vapour pressure of A is 21 kPa and that of B is 18 kPa. One mole of A and 2 moles of B are mixed. Assuming that this solution is ideal,…2021
- Two open beakers one containing a solvent and the other containing a mixture of that solvent with a non volatile solute are together sealed in a…2020
- The molarity of the solution prepared by dissolving 6.3 g of oxalic acid (H_2 C_2 O_4 · 2 H_2 O) in 250 mL of water in mol L^-1 is x × 10^-2. The…2021
- Solution A is prepared by dissolving 1 g of a protein (molar mass =50000 g mol^-1 ) in 0.5 L of water at 300 K. Its osmotic pressure is x bar.…2026
- A solution containing 62 g ethylene glycol in 250 g water is cooled to -10^° C. If K_f for water is 1.86 K kg mol^-1, the amount of water (in g)…2019
- 1 g of a non-volatile non-electrolyte solute is dissolved in 100 g of two different solvents A and B whose ebullioscopic constants are in the ratio…2019
JEE Main 2013 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.