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A factory produces 40 kg of calcium in two hours by electrolysis. How much aluminium can be produced by same current in 2 hours if current efficiency is 50%?A. 22 kgB. 18 kgC. 9 kgD. 27 kg |
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Answer» Correct Answer - B `("Wt. of Ca")/("Wt. of Al") = ("Eq. mass of Ca")/("Eq. mass of Al") , (40)/("Wt. of Al") = (40//2)/(27//3)` or Wt. of Al = 18 kg . |
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