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Q.

The incorrect statement among the following is

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a

Hydrogen is used to reduce NiO

b

Zirconium is refined by Van Arkel method

c

The sulphide ore galena is concentrated by froth flotation

d

In the metallurgy of iron, flux used is SiO2

answer is D.

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Detailed Solution

In the metallurgy of iron, P4O10 is used as flux.
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