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JEE Main 2010 Chemistry question

ChemistryElectrochemistryJEE Main 2010

The Gibbs energy for the decomposition of at 500°C is as follows :

Missing argument for \frac\frac → Missing argument for \frac\frac43Al + ,\ Δ_rG = +966\ kJ\

The potential difference needed for electrolytic reduction of at 500°C is at least

Answer: (3)

Solution

Forming mol Al (from ) requires mol

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Question ID VK-039248