Q. Which of the following are correctly matched?
  1. Reactant- substance which undergoes change
  2. Product- new substance
  3. Chemical reaction- simplest form
Select the correct answer from the codes given below:

Answer: Only 1 and 2
Notes: The description of a chemical reaction in a sentence form is quite long. It can be written in a shorter form. The simplest way to do this is to write it in the form of a word-equation. The substances that undergo chemical change in the reaction are the reactants. The new substance is formed during the reaction, is a product.

This question is part of UPSC Daily 20 MCQ Series Course on GKToday Android app.