Calcium is obtained by the

Options

A. roasting of lime stone
B. reduction of `CaCl_(2)` with carbon
C. electrolysis of a solution of `CaCl_(2)` in water
D. electrolysis of molten `CaCl_(2)`

Answer

D

Explanation

`CaCl_(2) rarr underset("Cathode")(Ca^(+2))+underset("Anode")(2Cl^(-))`
Cathode :` Ca^(+2)+2e^(-)rarr Ca`
Anode : `2C^(-) rarr 2 e^(-)+Cl_(2)`