What is meant by 'demineralised water' and how it can be obtained?

Options

A. Water free from cations and anions.
B. Water free from minerals dissolved in it.
C. Water free from impurities.
D. Water free from `Na^(+)` and `K^(+)` ions.

Answer

A

Explanation

Water free from cations `(Ca^(2+), Mg^(2+), etc.)` and anions `(Cl^(-), SO_(4)^(2-),HCO_(3)^(-), etc.)` is called deionised or demineralised water.