JEE Main Chemistry question

Not in JEE Main or NEET syllabus

Calcium is obtained by

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

Answer: (A)

Solution

As established, highly reactive calcium is manufactured industrially by electrolysis of molten (fused) , with reduced at an iron cathode. Roasting limestone (B) only gives CaO (not the metal), carbon

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Question ID VK-137713