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How much electricity require to prepare 13.28 \mathrm{~kg} as aluminium oxide may be elatrotysed at 1000^o \mathrm{C}  to be furnish aluminium metal Rad given below

\mathrm{Al}^{3+}+3 \mathrm{e}^{-} \rightarrow \mathrm{Al}
 

Option: 1

1423.9 \times 10^7 \mathrm{C}


Option: 2

1226 \times 10^8 \mathrm{C}


Option: 3

1347 \times 10^6 \mathrm{C}


Option: 4

2247 \times 10^3 \mathrm{C}


Answers (1)

best_answer

\begin{aligned} &\mathrm{ Q=\frac{m F z}{M}} \\ & \mathrm{Q=\frac{13.28 \times 10^5 \times 96500 \times 3}{27} }\\ & \mathrm{Q=1423.9 \times 10^7 \mathrm{C}} \end{aligned}

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vinayak

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