KCET 2004 Chemistry Solved Paper

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Question : 30 of 60

Marks: +1, -0

In the electrolytic method of obtaining aluminium from purified bauxite, cryolite is added to the charge in order to :

dissolve bauxite and render it conductor of electricity.
lower the melting point of bauxite.
minimise the heat loss due to radiation.
protect aluminium produced from oxygen.

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