NEET2014Chemistry-Stoichiometry
NEET 2014 Chemistry Limiting Reagent MCQ Question
Type: MCQ-numerical-Medium-Class 11
1.0 g of magnesium is burnt with 0.56 g O₂ in a closed vessel. Which reactant is left in excess and how much? (At wt. Mg = 24; O = 16)
A
Mg, 0.16 g
B
O₂, 0.16 g
C
Mg, 0.44 g
D
O₂, 0.28 g
Correct Answer
Option A
Detailed Explanation
Mg + 0.5O₂ → MgO. 1 g Mg requires 0.666 g O₂. Since only 0.56 g O₂ is available, Mg is in excess by 0.16 g.
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