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Chemistry - Redox Reactions Question with Solution | TestHub

ChemistryRedox ReactionsProblem involving Equivalent ConceptHard2 minQB

ChemistryHardsingle choice

$KI O_{3}$ reacts with oxalic acid in solution to yield $K_{2} C_{2} O_{4}$ , $C O_{2}$ and $I_{2}$ . How many grams of oxalic acid will be required to react with 2.14 g of $KI O_{3}$ ? (K = 39, I = 127)

Options:

Answer:

Solution:

$2KI O_{3}$ + $6 H_{2} C_{2} O_{4}$ $\to$ $K_{2} C_{2} O_{4}$ + $I_{2}$ + $10C O_{2}$ + $6 H_{2} O$ , a 1:3 molar ratio. mol $KI O_{3}$ = 2.14/214 = 0.01; mol $H_{2} C_{2} O_{4}$ = 0.03; mass = 0.03 $x$ 90 = 2.7 g, option (a).

Stream:JEESubject:ChemistryTopic:Redox ReactionsSubtopic:Problem involving Equivalent Concept

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