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In a chemical equation, in which situation is the symbol (aq) correctly used?

Answer and explanation

Correct answer: When the substance is dissolved in water

The state symbol (aq) means aqueous. It is written when a substance is dissolved in water and exists as part of an aqueous solution, for example NaCl(aq). Therefore option A is correct. A solid substance is shown by (s), a liquid by (l), and a gas by (g). Light emission is not represented by a physical-state symbol, so options B, C and D do not give the meaning of (aq).

Related tags

ScienceClass10Chemical EquationsState SymbolsAqueous SolutionsChemical Reactions And EquationsChemical Substances – Nature And BehaviourChemical Substances Nature And Behaviour

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