Chemistry-Mole Concept
NEET Chemistry Mole Concept MCQ Question
Type: MCQ-numerical-Hard-Class 11
In the balanced chemical equation for the combustion of propane, C3H8, how many moles of oxygen gas (O2) are required to completely react with 2 moles of propane?
A
5 moles
B
10 moles
C
6 moles
D
8 moles
Correct Answer
Option B
Detailed Explanation
The balanced equation for the combustion of propane is C3H8 + 5O2 → 3CO2 + 4H2O. Thus, 5 moles of O2 are needed for each mole of C3H8, resulting in 10 moles of O2 for 2 moles of C3H8.
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