Question:

0.066 g of a metal was deposited when a current of 2 ampere passed for 100 seconds through an aqueous solution of its metal ion. The equivalent mass of the metal is-

Updated On: Apr 24, 2024
  • (A) 31.8
  • (B) 108.0
  • (C) 8.0
  • (D) 68.0
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The Correct Option is A

Solution and Explanation

Explanation:
Total charge passed in Coulombs = It = 2 X100 = 200 Coulombs 200 Coulombs of charge deposits 0.066 g of metal. Equivalent mass of the metal is that mass of metal deposited by 1 Farad or 96500 Coulombs. Equivalent mass of metal =96500×0.066200=31.845
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