Question

In which option can dilution be said to have occurred?
i) Evaporating NaCl solution to make it very concentrated
ii) Adding water to a $10\%CuS{O}_4$ solution to make it a $1\%$ solution
iii) Adding concentrated sulphuric acid to water

• A. i) and ii)
• B. ii) and iii)
• C. i) and iii)
• D. iii)

Answer 1

The correct option is B ii) and iii)

Dilution is adding of the solvent to a solution to lower the concentration of the solute in the solution.