Solutions Test ...

Which one of the following is incorrect for ideal solution ?

An ideal solution contains two volatile liquids $$A (P^0=100 \ torr)$$. If the mixture contains 1 mole of A and 3 moles of B, the total vapour pressure of distillate is:

Concentrated aqueous sulphuric acid is $$98% { H }_{ 2 }{ SO }_{ 4 }$$ by mass and has a density of $$1.80{ gmL }^{ -1 }.$$ Volume of acid required to make one lite of $$0.1 M{ H }_{ 2 }{ SO }_{ 4 }$$ solution is:

A solution of ethanol in water is 10% v/ v. If the solution and pure ethanol have densities 0.9886 g/cc and 0.785 g/cc respectively. % w/w of ethanol is:

A vessel of volume $$V = 16.62$$ litres contains a mixture of hydrogen and helium at a temperature of 27$$^{0}$$C and pressure 6 atmosphere.The mass of the mixture is 10 g. Then 
The ratio of mass of hydrogen to that of helium will be :

For  binary ideal liquid solution, the total pressure of the solution is given as :

To an aqueous solution of $$NaI$$, increasing amounts of solid $$HgI_ { 2 }$$ is added, the vapour pressure of the solution:

On a certain day, the vapour pressure is 24 mm of Hg for water vapour in air at 300 K. The saturated vapour pressure is 26.463 mm. How many moles of water vapour per liter of air would be required to saturate the air at this temperature?

A mixture of $$CO$$ and $$CO_2$$ is found to have a density of 1.50 $$g L^{-1}$$ at 20$$^0C$$ & 740 mm pressure. Mole $$\%$$ of $$CO_2$$ in the given mixture is:

Which of the following electrolytes has the same van't Hoff factor$$(i)$$ as that of aluminium sulphate: