JEE Main Chemistry question

Not in JEE Main or NEET syllabus

Calcium is obtained by [WB-JEE 2007]

(A)Electrolysis of molten Correct
(B)Electrolysis of solution of in water
(C)Reduction of with carbon
(D)Roasting of lime stone

Answer: (A)

Solution

Calcium, being a highly reactive metal, is manufactured by electrolysis of fused (molten) (often with some added to lower the melting point), using a graphite anode and iron cathode. Electrolysing an aqueous solution (B) would simply

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Question ID VK-137660