NEET Chemistry Functional Group Tests MCQ Question
In the confirmatory test for oxalate ions, how many moles of carbon dioxide (CO2) are released when 1 mole of calcium oxalate (CaC2O4) reacts with sulfuric acid (H2SO4) and potassium permanganate (KMnO4)?
5 moles
2 moles
8 moles
10 moles
Correct Answer
Detailed Explanation
According to the NCERT context, the reaction of calcium oxalate with sulfuric acid and potassium permanganate releases 10 moles of CO2 for every 2 moles of KMnO4. Therefore, for 1 mole of CaC2O4, 5 moles of CO2 are released.
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