Question

Match the column I with column II and mark the appropriate choice.

Column I	Column II
(A) Liquid $\leftrightarrow$ Vapour	(i) Saturated solution
(B) Solid $\leftrightarrow$ Liquid	(ii) Boiling point
(C) Solid $\leftrightarrow$ Vapour	(iii) Sublimation point
(D) Solute (s) $\leftrightarrow$ Solute(solution)	(iv) Melting point

• A. (A) - (i), (B) - (iii), (C) - (ii), (D) - (iv)
• B. (A) - (ii), (B) - (iv), (C) - (iii), (D) - (i)
• C. (A) - (iv), (B) - (ii), (C) - (i), (D) - (iii)
• D. (A) - (iii), (B) - (iv), (C) - (ii), (D) - (i)

Answer 1

The correct option is B (A) - (ii), (B) - (iv), (C) - (iii), (D) - (i)

When a liquid is heated, it eventually reaches a temperature at which the vapor pressure is large enough that bubbles form inside the body of the liquid. This temperature is called the boiling point. Once the liquid starts to boil, the temperature remains constant until all of the liquid has been converted to a gas. (Liquid<-> vapour).

Pure, crystalline solids have a characteristic melting point, the temperature at which the solid melts to become a liquid. (solid<-> liquid).

Sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase. (solid<->vapour)

The saturation solution is the solution in which no more solute can be dissolved in a solvent. (solute(s) <-> solute(solution))