NEET Chemistry Limiting Reagent Assertion Reason Question
Assertion (A): In the reaction between nitrogen and hydrogen to form ammonia, hydrogen is often the limiting reagent.
Reason (R): The stoichiometric ratio requires three moles of hydrogen for every mole of nitrogen.
Both A and R are true, and R is the correct explanation of A.
Both A and R are true, but R is not the correct explanation of A.
A is true but R is false.
A is false.
Correct Answer
Detailed Explanation
The NCERT context explains that for the reaction N2 + 3H2 → 2NH3, 3 moles of H2 are required for each mole of N2, often making H2 the limiting reagent when insufficient hydrogen is available.
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