What are the substances written on the left side of the arrow in a chemical equation called?
Answer and explanation
Correct answer: Reactants
The governing concept is the standard structure of a chemical equation. The substances written on the left side of the reaction arrow are the starting materials that undergo chemical change, so they are called reactants. The substances formed on the right side are products. A catalyst may speed up a reaction without being consumed, and a solvent is the medium in which a reaction may occur; neither term names all substances on the left. Therefore, option B is correct.
Frequently asked questions
What is the correct answer to this question?
Reactants
Why is this the correct answer?
The governing concept is the standard structure of a chemical equation. The substances written on the left side of the reaction arrow are the starting materials that undergo chemical change, so they are called reactants. The substances formed on the right side are products. A catalyst may speed up a reaction without being consumed, and a solvent is the medium in which a reaction may occur; neither term names all substances on the left. Therefore, option B is correct.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Chemical Reactions and Equations.
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