Q. Pick out the wrong statement.

View solution

Q. On addition of 1 c.c. of dilute hydrochloric acid (1% concentration) to 80 c.c. of a buffer solution of pH = 4, the pH of the solution becomes

View solution

Q. The weight fraction of methanol in an aqueous solution is 0.64. The mole fraction of methanol Xᴍ satisfies

View solution

Q. Pick out the wrong statement.

View solution

Q. In case of a ternery system involving two liquid components and a solute, the ratio of the concentration of the solute in the two phases at equilibrium is called the distribution co-efficient. The distribution co-efficient depends upon the

View solution

Q. Solution made by dissolving equimolar amounts of different solutes in the same amount of a given solvent will have the

View solution

Q. N₂ content in a urea sample was found to be only 42%. What is the actual urea content of the sample ? (molecular weight of urea = 60)

View solution

Q. Specific gravity on API scale is given by the relation(where, G = specific gravity at 15.5°C).

View solution

Q. S.T.P. corresponds to

View solution

Q. With rise in pressure, the solubility of gases in solvent, at a fixed temperature

View solution

Q. Pick out the wrong statement.

View solution

Q. Vapor pressure of water at 100°C is about __________ bar.

View solution

Q. At room temperature, the product [H⁺] [OH⁻] in a solution is 10⁻¹⁴ moles/litre. If, [OH⁻] = 10⁻⁶ moles/litre, then the pH of the solution will be

View solution

Q. Molar heat capacity of water in equilibrium with ice at constant pressure is

View solution

Q. If pH value of a solution is 8, then its pOH value will be

View solution

Q. The chemical nature of an element is independent of

View solution

Q. The heat change for the reaction, C(s) + 2S(s) → CS₂(l), is 104.2 kJ. It represents the heat of

View solution

Q. A sample of well water contains 140 gm/m³ Ca²⁺ ions and 345 gm/m³ Na⁺ ions. The hardness of the sample of water, expressed in terms of equivalent CaCO₃ in gm/m³ is (assuming atomic masses of Ca :40, Na : 23, C : 12, O : 16)

View solution

Q. The activity co-efficient of a solution, which accounts for the departure of liquid phase from ideal solution behaviour

View solution

Q. Osmotic pressure of a dilute solution of a non volatile solute in a solvent obeying Raoult's law is proportional to the

View solution