D-And F-Block Elements Ques 443

Question: FeCr2O4 (chromite) is converted to Cr by following steps: Chromite INa2CrO4 IICr2O3IIICr,, I, II and III are

Options:

A) I II III Na2Co3/air,Δ C C

B) I II III NaOH/air,Δ C, Δ Al, Δ

C) I II III NaOH/air,Δ C, Δ Mg, Δ

D) I II III cone. H2SO4,Δ NH4Cl C, Δ

Show Answer

Answer:

Correct Answer: B

Solution:

FeCr2O4ΔNaOH/airNa2CrO4C,ΔCr2O3 A1,ΔCr



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