Q.2.A) Write the Scientific Reasons. (Any2)
Cryolite (Na3AlF6) and Fluorspar (CaF2) are added to electrolytic mixture containing
pure alumina.
ii) In an electric iron the coil of high resistance is kept between mica sheets.
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Answer:answer of Q.2.A)
Pure alumina does not carry electricity resulting in obstacle in electrolytic reduction.Therefore,Cryolite is added in it to increase the conductivity of alumina for electrolytic reduction.
Flurospar is added to reduce the temperature of alumina from 2000°C to 1000°C.
Explanation:
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