MHT CET · Chemistry · Electrochemistry
What will be the weight of \(\mathrm{Al}\) deposited at cathode, when 0.5 faraday of electricity is passed through aqueous solution of \(\mathrm{AlCl}_3\) ? (at mass of \(\mathrm{Al}=27\) )
- A 4.5 g
- B 13.5 g
- C 40.5 g
- D 3.0 g
Answer & Solution
Correct Answer
(A) 4.5 g
Step-by-step Solution
Detailed explanation
\(\begin{array}{cc}\mathrm{Al}^{+3}+3 \mathrm{e}^{-} & \mathrm{Al}(\mathrm{s}) \\ 3 \mathrm{~F} & 27 \mathrm{~g} \\ 0.5 \mathrm{~F} & 4.5 \mathrm{~g}\end{array}\)
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