Question

Tick the most appropriate answer:

(iv) The chemical equation is a statement that describes a chemical reaction in terms of

• A. symbols
• B. formulae
• C. both (a) and (b)
• D. none of these

Answer 1

The correct option is C

both (a) and (b)

Explanation:

• 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 whereas products are substances that are produced during a chemical reaction.
• Example: Ammonia and Hydrochloric acid reacts together to form ammonium chloride
• $\mathrm{Chemical}\mathrm{equation}:\underset{\mathrm{Ammonia}}{{\mathrm{NH}}_3\left(\mathrm{g}\right)}+\underset{\mathrm{Hydrochloric}\mathrm{acid}}{\mathrm{HCl}\left(\mathrm{g}\right)}\to \underset{\mathrm{Ammonia}\mathrm{chloride}}{{\mathrm{NH}}_4\mathrm{Cl}\left(\mathrm{s}\right)}$
• Hence, the chemical equation is a statement that describes a chemical reaction in terms of symbols and formulae.

Therefore, option (C) is correct.