Choose the incorrect statement from the following:
Choose the incorrect statement from the following:
Option 1 -
The slag obtained during extraction of iron is heavy and has lower melting point than that of metal.
Option 2 -
At temperature below 983 K(approx) CO is chief reducing agent in blast furnance.
Option 3 -
In zone refining impurities moves in the direction of water.
Option 4 -
Electrolytic reduction of Al2O3 is known as Hall-Heroult process.
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1 Answer
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Correct Option - 1
Detailed Solution:The slag formed is CaSIO3 which is lighter and has less melting point.
Similar Questions for you
Na+ C + N + S ®NaSCN
Fe3+ + SCN–
In the metallurgy of aluminium, purified Al2O3 is mixed with Na3AIF6 or CaF2 which lowers the melting point of the mixture and brings conductivity.
Ellingham diagram explains the feasibility of reduction process not the kinetics of process.
Malachite : CuCO3.Cu (OH)2
Azurite : 2CuCO3.Cu (OH)2
Cuprite : Cu2O
Copper pyrite : Cu2S.Fe2S3.
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