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AIIMS2003ChemistryElectrochemistry

Time required to deposit one millimole of aluminium metal by the passage of 9.65 amperes through aqueous solution of aluminium ion is

Options

  1. A30 ~s
  2. B10 ~s
  3. C30,000 ~s
  4. D10,000 ~s .

Correct answer

B. 10 ~s

Step-by-step solution

Al ³⁺+3 e⁻ Al For deposition of 1 ~g equivalent 96500 C For deposition of 1 millimole 96.500 C As Q=I t t= Q I = 96.5 9.65 =10 ~s

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