List of top Chemistry Questions on Ideal and Non-ideal solutions

Identify the correct statements. A. Molality of a solution is defined as mass of solute in gram dissolved in solution.
B. Molality of a solution is defined as the number of moles of solute dissolved in \(1\text{ kg}\) of solvent.
C. Aqueous solution of \(\ce{NH4OH}\) and \(\ce{NH4Cl}\) is a basic buffer solution.
D. Solubility of a gas in a liquid increases with increase in pressure.

Liquids ‘X’ and ‘Y’ form an ideal solution. The vapour pressure of pure ‘X’ and pure ‘Y’ are 120 mm Hg and 160 mm Hg respectively. Calculate the vapour pressure of the solution containing equal moles of ‘X’ and ‘Y’.

Assertion (A): \( \Delta_{\text{mix}} H \) for an ideal solution is not equal to zero.
Reason (R): A–B interactions in an ideal solution are the same as between A–A and B–B interactions.

The mixture that forma maximum boiling azeotrope is :

For an ideal solution, the correct option is: