Sample Test Chemistry
1 Which of the two has lower freezing point, 2m NaCl or 5m NaCl aqueous solution?
2 Naphthalene dissolves in which of the solvent?
3 Boiling point of solution containing a non volatile solute is always ---- the boiling point of pure solvent in which solution is prepared.
4 When a solid solute is added to solvent, some solute dissolves and its concentration increases in solution. This process is known as
5 What is the freezing point of 0.1 m glucose solution in water? For water Kf is 1.86 K kg/mol?
6 The van't Hoff factor for a solute is slightly more than one. What does it indicate?
7 Twenty moles of sodium chloride are placed in beaker A and 5 moles of sodium chloride are placed in beaker B. The solution in which beaker will show a greater increase in boiling point and decrease in freezing point?
8 Camphor is used as solvent to determine the molecular mass of non-volatile solute by Rast method because for camphor
9 Which of the following forms an ideal solution?
10 Which of the following solutions are isotonic?
i) 0.01M glucose ii) 0.01M NaNO3 iii) 0.1M HCl iv) 500mL solution containing 0.3g urea