Chemistry - Redox Reactions Question with Solution | TestHub
ChemistryRedox ReactionsProblem involving Equivalent ConceptEasy2 minQB
ChemistryEasysingle choice
KIO₃ reacts with oxalic acid in solution to yield K₂C₂O₄, CO₂ and I₂. How many grams of oxalic acid will be required to react with one gram of KIO₃? (K = 39, I = 127)
Options:
Answer:
A
Solution:
Balanced equation: 2KIO₃ + 6H₂C₂O₄ K₂C₂O₄ + I₂ + 10CO₂ + 6H₂O (5 oxalates oxidized, 10e⁻; 2 iodate reduced, 10e⁻; the 6th oxalate forms K₂C₂O₄). mol KIO₃ = 1/214; mol H₂C₂O₄ = 3/214 = 0.01402; mass = 0.01402 x 90 = 1.262 g, option (a).
Stream:JEESubject:ChemistryTopic:Redox ReactionsSubtopic:Problem involving Equivalent Concept
⏱ 2mℹ️ Source: QB
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