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प्रश्न
Number of faradays of electricity required to liberate 12 g of hydrogen is:
पर्याय
1
8
12
16
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उत्तर
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.
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संबंधित प्रश्न
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Three electrolytic cells A, B, C containing solutions of ZnSO4, AgNO3 and CuSO4, respectively, are connected in series. A steady current of 1.5 amperes was passed through them until 1.45 g of silver deposited at the cathode of cell B. How long did the current flow? What mass of copper and zinc were deposited?
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(A) 1.0
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(D) 0.75
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Explain Faraday’s second law of electrolysis
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Reason (R): The electrode potential of Cu2+/Cu is greater than that of H+/H2.
Select the most appropriate answer from the options given below:
