Chemistry - Redox Reactions Question with Solution | TestHub

ChemistryRedox ReactionsBalancing of Redox ReactionsHard2 minQB

ChemistryHardmultiple choice

$KMn O_{4}$ reacts with $K_{2} C_{2} O_{4}$ and $H_{2} S O_{4}$ to form $MnS O_{4}$ , $C O_{2}$ , $K_{2} S O_{4}$ and $H_{2} O$ . Which statements are correct?

Options:(select one or more)

Answer:

A, C

Solution:

The balanced equation is

$2KMn O_{4} + 5 K_{2} C_{2} O_{4} + 8 H_{2} S O_{4} ⟶ 2MnS O_{4} + 10C O_{2} + 6 K_{2} S O_{4} + 8 H_{2} O .$

Two moles of permanganate produce ten moles of carbon dioxide, hence one produces five moles or $112 L$ at STP. One mole of oxalate produces two moles of carbon dioxide. Permanganate to oxalate is $2 : 5$ , not $1 : 2$ .

Stream:JEESubject:ChemistryTopic:Redox ReactionsSubtopic:Balancing of Redox Reactions

⏱ 2mℹ️ Source: QB

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