Calcium is obtained by the

Calcium is obtained by the

Options

(a) electrolysis of solution of calcium chloride in water
(b) electrolysis of molten anhydrous calcium chloride
(c) roasting of limestone
(d) reduction of calcium chloride with carbon

Correct Answer:

electrolysis of molten anhydrous calcium chloride

Explanation:

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  • Calcium is obtained by electrolysis of molten CaCl2​
    Calcium is obtained by the electrolysis of a fused mass consisting of six parts calcium chloride and one part calcium fluoride at about 700oC in an electrolytic cell made of graphite which acts as anode and a water-cooled cathode of iron which is suspended from the top in the fused mass. On passing current, calcium is discharged at the cathode. CaCl2​⇌Ca2++2Cl−

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