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ChemistryElectrochemistryMiscellaneous/MixedEasy2 minPYQ_2020

ChemistryEasysingle choice

Which substance is obtained in the solution on electrolysis of aq. $C u S O_{4}$ solution using graphite electrodes?

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Answer:

Solution:

$\begin{array}{l} A t c a t h o d e C u^{+ 2} w i l l g e t r e d u c e d d u e t o g r e a t e r r e d u c t i o n p o t e n t i a l \\ C u^{+ 2} + 2 e^{-} \to C u (s) \\ A t a n o de, H_{2} O w i l l g e t p r e f e r e n t i a l l y d i s c h a r g e d . \\ H_{2} O \to \frac{1}{2} O_{2} + 2 H^{+} + 2 e^{-} \\ H e n c e t h e f i n a l s o l u t i o n w i l l c o n t a i n H^{+} & S O_{4}^{- 2} o r H_{2} S O_{4} \end{array}$

Stream:NTA_ABHYASSubject:ChemistryTopic:ElectrochemistrySubtopic:Miscellaneous/Mixed

⏱ 2mℹ️ Source: PYQ_2020

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