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Which chemical equation represents the reaction of an Arrhenius acid and an Arrhenius base?

(1) HC2H3O2(aq) + NaOH(aq) --> NaC2H3O2(aq) + H2O(l)

(2) C3H8(g) + 5 O2(g)--> 3 CO2(g) + 4 H2O(l)

(3) Zn(s) + 2 HCl(aq)--> ZnCl2(aq) + H2(g)

(4) BaCl2(aq) + Na2SO4(aq) --> BaSO4(s) + 2 NaCl(aq)

Verified Answer :

The chemical equation that represents the reaction of an Arrhenius acid and an Arrhenius base is 1) HC2H3O2 (aq) + NaOH (aq) ---> NaC2H3O2 (aq) + H2O (I) 

Answer : The correct option is, (1)

Explanation :

According to the Arrhenius acid-base concept,

Arrhenius acid is a species that produces \(H^+\) ion in an aqueous solution and Arrhenius base is a species that produces \(OH^-\) ion in an aqueous solution.

From the given options, option 1 chemical equation represents the reaction of an Arrhenius acid and an Arrhenius base. In this reaction, \(HC_2H_3O_2\) produces \(H^+\) ion in an aqueous solution and act as an Arrhenius acid, \(NaOH\) produces \(OH^-\) ion in an aqueous solution and act as an Arrhenius base.

While the other options does not represents the reaction of an Arrhenius acid and an Arrhenius base.

Reaction 2 is an example of combustion reaction.

Reaction 3 is an example of single-displacement reaction.

Reaction 4 is an example of double-displacement reaction.

Hence, the correct option is, (1)

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