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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

Which of the following statements is incorrect?

Options:

Answer:

Solution:

(i) Molten mixture of alumina and cryolite

(ii) $2 PbS + 3 O_{2} \to 2 Pb + 2 S O_{2}$ (self-reduction)

$PbS + 2 PbO \to 3 Pb + S O_{2}$ (Self reduction)

$PbO + C \to P b + C O$ (carbon reduction)

(iii) $Sn O_{2} + C \to S n + C O$ (carbon reduction

(iv) siderite $= FeC O_{3}$ , cassiterite $= Sn O_{2}$ and argentite $= A g_{2} S .$

Stream:NTA_ABHYASSubject:ChemistryTopic:General Principles and Processes of Isolation of MetalsSubtopic:General

⏱ 2mℹ️ Source: PYQ_2020

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