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JEE Main Chemistry question

ChemistrySome Basic Concepts of ChemistryJEE Main

In the reaction, , 4.98 g of Al reacted with 20.0 g CrO. How many grams of reactant remains at the completion of the reaction?

Answer: 6

Solution

Moles Al mol; moles CrO mol. Since 2 mol Al is needed per mol CrO, 0.184 mol Al only

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Question ID VK-130662