Chemistry - General Principles and Processes of Isolation of Metals Question with Solution | TestHub

ChemistryGeneral Principles and Processes of Isolation of MetalsGeneralEasy2 minPYQ_2020
ChemistryEasysingle choice

Among the reactionsa-d, the reaction(s) that does/do not occur in the blast furnace during the extraction of iron is/are
a  CaO +  SiO 2 → CaSiO 3
b  3  Fe 2 O 3  + CO→2  Fe 3 O 4  +  CO 2
c  FeO+ SiO 2 → FeSiO 3
d  FeO→Fe+ 1 2 O 2

Options:

Answer:
A
Solution:

CaO+SiO2→CaSiO3

3Fe2O3+CO→2Fe3O4+CO2

Used as flux.

Reduction is done by CO.

Hence these two reactions are possible butthe reactions given below are not possible

FeO→Fe+12O2

FeO+SiO2→FeSiO3

Stream:NTA_ABHYASSubject:ChemistryTopic:General Principles and Processes of Isolation of MetalsSubtopic:General
⏱ 2mℹ️ Source: PYQ_2020

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