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BITSAT2013ChemistryElectrochemistryActual

A current of 2.0 A passed for 5 hours through a molten metal salt deposits 22.2 ~g of metal (At wt. =177 ). The oxidation state of the metal in the metal salt is

Options

  1. A1
  2. B2
  3. C3
  4. D4

Correct answer

C. 3

Step-by-step solution

m = E wt Q 96500 aligned E . wt &= m 96500 Q = 22.2 96500 2 5 60 60 =60.3 aligned Oxidation state = At wt. Eq. wt. = 177 60.3 =3

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