WBJEE · Chemistry · Electrochemistry
What amount of clectricity can deposit
I mole of Al metal at cathode when passed through molten \(\mathrm{AlCl}_{3} ?\)
- A \(0.3 \mathrm{F}\)
- B \(1 \mathrm{F}\)
- C \(3 \mathrm{F}\)
- D \(1 / 3 \mathrm{F}\)
Answer & Solution
Correct Answer
(C) \(3 \mathrm{F}\)
Step-by-step Solution
Detailed explanation
The number of electrons involved in the reaction are three as shown below \[ \mathrm{Al}^{3+}+3 e^{-} \longrightarrow \mathrm{Al} \] It means the conversion of every aluminium ion to aluminium atom requires three electrons. Therefore, the amount of electricity required for one…
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