Q. Which of the following are correctly matched?

1. Dissolution- solute gets dissolved in a solvent.
2. Exothermic- heat in absorbed.
3. Reversible change- reactants can be obtained.

Select the correct answer from the codes given below:
Answer: Only 2 and 3
Notes: Dissolution is a process by which any solute gets dissolved in a solvent. Exothermic reactions are those reactions during which heat is evolved. Endothermic reaction is that reaction during which heat is absorbed. The change which can be reversed by reversing the conditions is called reversible change. Example----glowing of a bulb.