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ChemistryElectrochemistryMiscellaneous/MixedEasy2 minPYQ_2020
ChemistryEasynumerical

A current of 5.0A flows for 4.0h through an electrolytic cell containing a molten salt of metal M. This results in deposition of 0.25mol of the metal M at the cathode. The oxidation state of M in the molten salt is +x . the value of ' x ' is ( 1Faraday=96000C mol-1)

Answer:
3.00
Solution:

I=5.0 A, t=4.0 h
Moles of metal deposited=14
Q=5.0×4×60×60coulombs
Charge in faradays
Q= 5×4×60×60 96000 =0.75F
14moles of metal will be deposited by34F charge required
So, for 1 mole,34×4=3F
Oxidation=+3

Stream:NTA_ABHYASSubject:ChemistryTopic:ElectrochemistrySubtopic:Miscellaneous/Mixed
2mℹ️ Source: PYQ_2020

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