Science, asked by sahinachoudhury, 1 month ago

alumina is dissolved in molten cryolite for electrolysis to obtain aluminium metal give reason

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Answered by hmnagaraja3

Answer:

Aluminium oxide has a very high melting point (over 2000oC) so it would be expensive to melt it. So it is dissolved in molten cryolite -which has a lower melting point than aluminium oxide. The use of cryolite reduces some of the energy costs involved in extracting aluminium.

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