Heavy water is manufactured by `:`

Options

A. Prolonged electrolysis of water
B. Dissolving heavy salt in water
C. Simple distillation of water
D. Removing impurities of calcium and magnesium from water

Answer

A

Explanation

Heavy water is obtained by prolonged electrolysis of water. `D^(+)` ions have lower mobility than `H^(+)` ions due to greater mass. As such during electrolysis the rate of dissociation of `H_2O` is more than `D_2O`.