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ChemistryElectrochemistryMiscellaneous/MixedEasy2 minPYQ_2020

ChemistryEasysingle choice

In a Cu-voltameter, mass deposited in 30s is m gm. If the time-current graph is shown in the following figure

What is the electrochemical equivalent of Cu?

Options:

Answer:

Solution:

Total charge passed in 30 sec.

$= \frac{1}{2} \times 100 \times 10 + 100 \times 10 + 100 \times 10 + \frac{1}{2} \times 100 \times 10$

$= 3 \times 100 \times 10 m A \times s$

$= 3000 \times 1 0^{- 3} a m p s = 3C$

$W = Z Q$

So $Z = \frac{W}{Q} = \frac{m}{3}$

Stream:NTA_ABHYASSubject:ChemistryTopic:ElectrochemistrySubtopic:Miscellaneous/Mixed

⏱ 2mℹ️ Source: PYQ_2020

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