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Question

Which term refers to the quantitative study of reactants and products in a chemical reaction?

This question was previously asked in
RRB NTPC 2025 Under Graduate CBT 1 Question Paper PDF (20-Jun-2026) (Shift 3)
The correct answer is

Stoichiometry

Stoichiometry is the branch of chemistry that deals with the quantitative relationships between reactants and products in a chemical reaction, based on the balanced chemical equation.

Molarity, mass per cent, and mole fraction are all methods for expressing the concentration of a solution, not the study of reaction quantities.

Hence, the correct answer is Stoichiometry.

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