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When an electric current is passed through acidified water, 112 mL of hydrogen gas at N.T.P was collected at the cathode in 965 seconds. The current passed, in ampere, is:

Options

  1. A2.0
  2. B0.1
  3. C0.5
  4. D1.0

Correct answer

D. 1.0

Step-by-step solution

Cathode 2 e - +   2 H 2 O ⟶ H 2 +   2 O H - v . f . H 2 = 2 Mole = i × t v . f . × 96500 112 22400 = i × 965 2 × 96500 1 2 =   i 2 i = 1   a m p

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