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Number of faradays of electricity required to liberate 12g of hydrogen is 12 - Chemistry

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MCQ

Number of faradays of electricity required to liberate 12 g of hydrogen is:

Options

  • 1

  • 8

  • 12

  • 16

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Solution

12

  • The molecular mass of Hydrogen is 1 gram and has a single electron in its configuration as it is the first most element of the periodic table.
  • The 12 grams of Hydrogen contains 12 moles of the electrons in it. Usually, the electricity will be passed through the free electrons.
  • The 12 grams of Hydrogen contains 12 electrons which are free electrons.
  • Each free electron is capable of conducting 1 Faraday of electricity.
  • Since 12 grams of Hydrogen are having 12 electrons in it, we require 12 Faraday of electricity.
Concept: Electrolytic Cells and Electrolysis - Introduction
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