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An acid is a substance that increases the concentration of H₃O⁺ ions in solution. Look at the reaction below of phenol (C₆H₅OH) with water:
Which reactant acts as an acid by contributing a H⁺ ion to create H₃O⁺ in the chemical equation?
a. C₆H₅OH(aq)
b. H₂O(l)
c. C₆H₅O⁻(aq)
d. H₃O⁺(aq)

Respuesta :

Answer:

a. C₆H₅OH(aq)

Explanation:

The reaction of phenol with water is shown below as:-

[tex]C_6H_5OH_{(aq)}+H_2O_{(l)}\rightarrow C_6H_5O^-_{(aq)}+H_3o^+_{(aq)}[/tex]

According to Arrhenius, The specie which furnish protons in solution is known as acid. In the above reaction, phenol, [tex]C_6H_5OH[/tex] acts as an acid by contributing a H⁺ ion to create H₃O⁺ in the chemical equation.

a. C₆H₅OH(aq) is the answer

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