91Ó°ÊÓ

The elevation in boiling point is given by the formula $$\Delta x \quad K_{h} \times \frac{\mathfrak{w}}{m} \times \frac{1}{W}$$ where \(K_{b}\) is called (a) boiling point constant (b) ebullioscopic constant (c) molal elevation constant (d) all of these

The ratio of the colligative effect produced by an electrolyte solution to the corresponding effect for the same concentration of a non-electrolyte solution is known as (a) degree of dissociation (b) degree of association (c) activity coefficient (d) van't Hoff factor

Freezing-point depression is measured by (a) Beckmann's method (b) Rast's camphor method (c) both (d) none of these

The depression in freezing point is measured by using \(\Delta T\) \(K_{n} \times \frac{w}{m} \times \frac{1}{W}\) where \(K_{f}\) is called (a) molal depression constant (b) freezing point depression constant (c) cryoscopic constant (d) all of these

Molal elevation constant is the boiling point elevation when _____ of the solute is dissolved in one kg of the solvent. (a) one gram (b) one \(\mathrm{kg}\) (c) one mole (d) none of these

Which of the following is a colligative property? (a) molar refractivity (b) optical rotation (c) depression in freezing point (d) viscosity

The law of the relative lowering or vapour pressure was given by (a) van't Hoff (b) Ostwald (c) Raoult (d) Henry

The study of depression in freezing point of a solution is called (a) osmotic pressure (b) ebullioscopy (c) cryoscopy (d) none of these