Chemistry - Electrochemistry Question with Solution | TestHub

ChemistryElectrochemistryMiscellaneous/MixedEasy2 minPYQ_2020
ChemistryEasysingle choice

A current of 1.93ampere is passed through 200mL of 0.5MZincsulphate(aq.) solution for 50min with a current efficiency of 80%. If volume of solution remain constant, then[Zn2+]after deposition ofZn2+is:

Options:

Answer:
A
Solution:

No. of Faraday=1.93×50×6096500=0.06
Moles ofZn2+deposited=80100×0.062=0.024
Zn 2+ = 0.5×0.20.024 0.2 =0.38M

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

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