Question 33
In isotonic solutions ........... .
(a) solute and solvent both are same
(b) osmotic pressure is same
(c) solute and solvent may or may not be same
(d) solute is always same solvent may be different

Q. Assertion :$1M$ solution of Glauber's salt is isotonic with $1M$ solution of $KN{O}_3$. Because Reason: Solutions having same molar concentration of solute may or may not have same osmotic pressure.

Q. The vapour pressure of a solution of a non-volatile electrolyte B in a solvent A is 95% of the vapour pressure of the solvent at the same temperature. If the molecular weight of the solvent is 0.3 times the molecular weight of solute, the weight ratio of the solvent and solute are:

Q. Choose A, B, C or D to match the descriptions (i) to (v) below. Some alphabets may be repeated.

(iv) A solution containing solvent

Q. Solutions that have the same osmotic pressure are called _____ (isotonic/isometric) solutions.

Q. The vapour pressure of a solution of a non- volatile solute $B$ in a solvent $A$ is $95\%$ of the vapour pressure of the pure solvent at the same temparature. If the molecular weight of the solvent is $0.3$ times the molecular weight of the solute, what is the ratio of the weight of solvent to solute?