Chemistry - Redox Reactions Question with Solution | TestHub
ChemistryRedox ReactionsProblem involving Equivalent ConceptEasy2 minQB
ChemistryEasysingle choice
What volume of 0.40 M Na₂S₂O₃ would be required to react with the I₂ liberated by adding excess of KI to 50 ml of 0.20 M CuSO₄?
Options:
Answer:
B
Solution:
mmol Cu²⁺ = 50 x 0.20 = 10. 2Cu²⁺ + 4I⁻ Cu₂I₂ + I₂, so I₂ = 5 mmol. I₂ + 2S₂O₃²⁻: S₂O₃²⁻ = 10 mmol. Volume of 0.40 M Na₂S₂O₃ = 10/0.40 = 25 ml, option (b).
Stream:JEESubject:ChemistryTopic:Redox ReactionsSubtopic:Problem involving Equivalent Concept
⏱ 2mℹ️ Source: QB
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