Cost of Electricity to deposit 12 grams of Magnesium is Rs 600. Cost of Electricity to deposit 10 grams of calcium will be
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a
Rs 500
b
Rs 450
c
Rs 150
d
Rs 300
answer is D.
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Detailed Solution
12 grams of Magnesium =Rs 600 ; 12 gram of 'Mg'=GEW, which requires one Faraday; Thus cost of 1F=Rs 600; GEW of 'Ca' = 20 g; 20 g require Rs 600 10 g require X; X=Rs 300