State True or False for the following statements:
$(i)$ The volatile liquid is purified by fractional distillation or simple distillation.
$(ii)$ Two liquids are separated by fractional distillation.
$(iii)$ Liquids with a small difference in boiling points are separated by fractional distillation.
$(iv)$ Liquids with a large difference in boiling points are separated by fractional distillation.

(N/A) $(i) \text{ False, } (ii) \text{ False, } (iii) \text{ True, } (iv) \text{ False}$.
Explanation:
$(i)$ Volatile liquids are purified by distillation,but the choice between simple and fractional depends on the boiling point difference.
$(ii)$ Two liquids can be separated by simple or fractional distillation depending on their boiling points,not just fractional.
$(iii)$ Fractional distillation is specifically used when the boiling point difference is small (less than $20 \ K$).
$(iv)$ Liquids with a large difference in boiling points are separated by simple distillation,not fractional.