Statements given below are incorrect. Write the correct statements :
While writing a chemical equation, one need not to know whether the reaction takes place between two or more reactants.
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Solution
A symbolic representation of the changes which occur in a chemical reaction, expressed in terms of the formulae of the molecules involved, is called a chemical equation.
Reactants are substances that are consumed or react in a chemical reaction.
Products are substances that are produced during a chemical reaction.
Correct statement: While writing a chemical equation, one needs to know whether the reaction takes place between two or more reactants.