MHT CET · Chemistry · Electrochemistry
What is the quantity of electricity required to produce 4.8 g of Mg (molar mass \(=24 \mathrm{~g} \mathrm{~mol}^{-1}\) ) from its salt solution?
- A 10 F
- B 4 F
- C 1 F
- D 0.4 F
Answer & Solution
Correct Answer
(D) 0.4 F
Step-by-step Solution
Detailed explanation
\(\mathrm{Mg}^{2+}+2 \mathrm{e}^{-} \longrightarrow \mathrm{Mg}\)
2 F will deposit 1 mole Mg (i.e., 24 g of Mg) Hence, 0.4 F of electricity will be required to deposit 4.8 g of Mg from it's salt solution.
2 F will deposit 1 mole Mg (i.e., 24 g of Mg) Hence, 0.4 F of electricity will be required to deposit 4.8 g of Mg from it's salt solution.
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