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प्रश्न
Right or wrong sentence?
The electrolysis of alumina combines fluorite and cryolite to increase the solubility in the precipitation method.
विकल्प
Right
Wrong
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उत्तर
The given sentence is wrong.
Explanation:
Cryolite and fluorspar are added to alumina to lower its extremely high melting point and increase its electrical conductivity. They are not used to increase solubility, and the process is electrolytic reduction, not precipitation.
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\[\ce{MnO2(s) + Al(s) -> Mn(l) + Al2O3(s) + Heat}\]
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