Solutions practice · Mixed difficulty

A liquid freezes at $7^{\circ} \mathrm{C}$ and boils at $77^{\circ} \mathrm{C}.$ If the $K_{\mathrm{f}}$ and $K_{\mathrm{b}}$ values for the liquid are $5.6$ and $2.5 \, \mathrm{deg} / \mathrm{molal},$ respectively, then the ratio of molar latent heat of fusion to molar latent heat of vaporization is

An open beaker of water in equilibrium with water vapour is in a sealed container. When few grams of glucose are added to the beaker of water, the rate at which water molecules

Statement I : Mole fraction is the ratio of moles of a substance to the total moles in the solution.

Statement II : Mole fraction does not depend on temperature of solution.

In the light of the above statements, choose the correct answer from the options given below.

At certain temperature a 5.12% solution of cane sugar is isotonic with a 0.9% solution of an unknown solute. The molar mass of solute is

The energy that favours dissolution of a solute in water is known as:

Which of the following is correct for a solution showing positive deviations from Raoult's law?

1 mole of heptane (V.P = 92 mm of Hg) was mixed with 4 moles of octane (V.P = 31 mm of Hg). The V.P of resulting ideal solution is

The degree of dissociation $(\alpha)$ of a week electrolyte, $\mathrm{A}_2 \mathrm{SO}_4$ is related to Vant Hoff factor (i) by the expression

Assertion (A): $1 \, \mathrm{M}$ solution and 1 molal solution of same solute contain same mass of solute.

Reason (R): Molality is temperature independent.

The solubility of gas in liquid depends upon :

The substances whose solubility decreases with increase in temperature :

An acid '$A$' is $0.4 \mathrm{~N}$. In a neutralization process $50 \mathrm{~ml}$ of '$A$' is mixed with $30 \mathrm{~ml}$ of sodium carbonate solution (42.49/litre) and $10 \mathrm{~mL}$ of the resulting solution is diluted to $50 \mathrm{~mL}$ and then $5 \mathrm{~mL}$ of this solution $(B)$ is completely neutralised with certain volume of 40 times diluted solution of $(A)$. find the volume of diluted solution. of $(A)$ required for the neutralization of $B$ (in $\mathrm{mL}$)

Colligative properties of a solution depends upon

Which of the following is not an example of a solution?

The vapour pressure of water depends upon :

Solubility of a substance is its maximum amount that can be dissolved in a specified amount of solvent.
It depends upon

(i) nature of solute $\quad$ (ii) nature of solvent $\quad$ (iii) temperature $\quad$ (iv) pressure