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  • The quantity of charge required to obtain one mole of aluminium from Al_{2}O_{3} is ___________.

The quantity of charge required to obtain one mole of aluminium from Al_{2}O_{3} is ___________.

(i) 1F

(ii) 6F

(iii) 3F

(iv) 2F

Answers (1)

The answer is the option (iii) Al_{2}O_{3}\rightarrow 2Al^{3+}+ 3O^{2-}

Al^{3+}+3e^{-} \rightarrow Al (for 1 mole) 

To obtain 1 mole Al from Al_{2}O_{3}, we require 3F charge

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infoexpert23

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