Chemistry - Metallurgy Question with Solution | TestHub
ChemistryMetallurgyEllingham diagram & Reduction methods, Refining of metalMedium2 minQB
ChemistryMediumsingle choice
An example of a disproportionation reaction is :
Options:
Answer:
C
Solution:
In a disproportionation reaction, the same element is simultaneously oxidized and reduced.
(C) 2CuBr → CuBr₂ + Cu is a disproportionation reaction because Cu⁺ changes to Cu²⁺ (oxidation) and Cu⁰ (reduction).
(A) is thermal decomposition of KMnO₄, while (B) and (D) are ordinary redox reactions involving different reactants.
Hence, only option (C) satisfies the definition of disproportionation.
Stream:JEESubject:ChemistryTopic:MetallurgySubtopic:Ellingham diagram & Reduction methods, Refining of metal
⏱ 2mℹ️ Source: QB
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