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AP EAMCET202021 Sep 2020Evening ShiftChemistryElectrochemistryActual

How much current is required to produce ( H ₂ ) gas at the rate of (1 cc / sec ) under STP?

Options

  1. A(2.33 ~A )
  2. B(6.0 ~A )
  3. C(7.9 ~A )
  4. D(8.61 ~A )

Correct answer

D. (8.61 ~A )

Step-by-step solution

(2 H ⁺+2 e⁻ H ₂ ) 1 mole of ( H ₂=22400 cc ) at NTP 2 moles of electron required (=2 96500 ) ( 1 cc ) at ( NTP = 2 96500 22400 =8.616 ) ( array ll & Q=I t & I= 8.616 l =8.616 Å array ) Hence, option (d) is correct.

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