Chemistry - Electrochemistry Question with Solution | TestHub

ChemistryElectrochemistryMiscellaneous/MixedEasy2 minPYQ_2020

ChemistryEasysingle choice

Calculate the time required for complete decomposition of one mole of water using $2$ ampere current. .

Options:

Answer:

Solution:

$2 H_{2} O \to 2 H_{2} + O_{2}$
One mole of $H_{2} O$ need $2$ moles of $e^{-} s$ for electrolysis.
So, $Q = I × t$
$\Rightarrow t = \frac{Q}{I}$
$= \frac{2 \times 96500}{2}$
$∴ t = 96500 sec$

Stream:NTA_ABHYASSubject:ChemistryTopic:ElectrochemistrySubtopic:Miscellaneous/Mixed

⏱ 2mℹ️ Source: PYQ_2020

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