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Chemistry - Metallurgy Question with Solution | TestHub

ChemistryMetallurgyExtraction of MetalsEasy2 minPYQ_2020

ChemistryEasysingle choice

Lime stone is added in the extraction of lead from galena why?

Options:

Answer:

Solution:

$CaO + {SiO}_{2} \to {CaSiO}_{3} (Slag)$

$PbO + {SiO}_{2} \to {PbSiO}_{3}$

$CaO$ converts ${PbSiO}_{3}$ to $PbO,$

${PbSiO}_{3} + CaO \to PbO + {CaSiO}_{3}$

and also prevents the formation of ${PbSO}_{4} .$

Stream:NTA_ABHYAS_NEETSubject:ChemistryTopic:MetallurgySubtopic:Extraction of Metals

⏱ 2mℹ️ Source: PYQ_2020

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