Colligative Properties — Chemistry Grade 12 · High School — Question Bank

Question 1 of 20Easy

Colligative properties of a solution depend only on ...

Question 2 of 20Easy

The formula for boiling point elevation is ...

Question 3 of 20Easy

The unit of molality $(m)$ is ...

Question 4 of 20Easy

A non-electrolyte solution has a molality of $0, 5 m$ . If $K_{f}$ of water is $1{,}86\,^\circ\text{C/m}$ , the freezing point depression is ...

Question 5 of 20Easy

Among the following $0, 1 m$ solutions, the one with the highest boiling point is ...

Question 6 of 20Easy

Which of the following is NOT a colligative property of solutions?

Question 7 of 20Medium

The van 't Hoff factor $(i)$ for a fully ionised $Na X_{2} SO X_{4}$ solution is ...

Question 8 of 20Medium

$36 g$ of glucose ( $C X_{6} H X_{12} O X_{6}$ , $M_{r} = 180$ ) is dissolved in $500 g$ of water. The molality is ...

Question 9 of 20Medium

The mole fraction of solute in a solution is $0, 2$ . If the vapour pressure of the pure solvent is $100 mmHg$ , the vapour pressure lowering is ...

Question 10 of 20Medium

$2 mol$ of urea is dissolved in $500 g$ of water. If $K_{b}$ of water is $0{,}52\,^\circ\text{C/m}$ , the boiling point elevation is ...

Question 11 of 20Medium

A non-electrolyte solution has a concentration of $0, 1 M$ . If $R = 0, 082 L atm mol^{- 1} K^{- 1}$ and the temperature is $300 K$ , the osmotic pressure is ...

Question 12 of 20Medium

The van 't Hoff factor of an electrolyte is written $i = 1 + (n - 1) α$ . The symbol $α$ represents ...

Question 13 of 20Medium

A $0, 1 m$ $NaCl$ solution is fully ionised. If $K_f = 1{,}86\,^\circ\text{C/m}$ , the freezing point depression is ...

Question 14 of 20Medium

In a sugar solution, the mole fraction of water is $0, 8$ . The mole fraction of sugar is ...

Question 15 of 20Hard

$3, 6 g$ of a non-electrolyte is dissolved in $200 g$ of water. The solution freezes at $-0{,}186\,^\circ\text{C}$ . If $K_{f}$ of water is $1{,}86\,^\circ\text{C/m}$ , the $M_{r}$ of the substance is ...

Question 16 of 20Hard

$0, 2 mol$ of a non-electrolyte is dissolved in water to a volume of $1 L$ at $27\,^\circ\text{C}$ . If $R = 0, 082 L atm mol^{- 1} K^{- 1}$ , the osmotic pressure is ...

Question 17 of 20Hard

A $0, 1 m$ $CaCl X_{2}$ solution ionises with a degree of ionisation $α = 0, 8$ . Its van 't Hoff factor is ...

Question 18 of 20Hard

Given $K_{b}$ of water $= 0{,}52\,^\circ\text{C/m}$ . $0, 1 mol$ of $CaCl X_{2}$ is dissolved in $1 kg$ of water and fully ionised. The boiling point elevation is ...

Question 19 of 20Hard

Four solutions have the same molality, $0, 1 m$ , and are fully ionised. The solution with the lowest freezing point is ...

Question 20 of 20Hard

$9 g$ of urea ( $CO (NH X_{2}) X_{2}$ , $M_{r} = 60$ ) is dissolved in $250 g$ of water. If $K_{f}$ of water is $1{,}86\,^\circ\text{C/m}$ , the freezing point of the solution is ...