Verified Answer :

Answer: (4) \(CH_3COOH\)

Explanation:-

According to Arrhenius concept, a base is defined as a substance which donates hydroxide ions \((OH^-)\) when dissolved in water and an acid is defined as a substance which donates hydronium ions \((H_3O^+)\) in water.

1. \(KOH\) is a strong electrolyte and thus dissociate in water.\(KOH\rightarrow K^++OH^-\)

2. \(CH_3OH\) is a non electrolyte and thus do no dissociate in water.

\(CH_3COOH\rightarrow no reaction\)

3. \(NaOH\) is a strong electrolyte and thus dissociate in water.

\(NaOH\rightarrow Na^++OH^-\)

4. \(CH_3COOH\) is a weak electrolyte and thus partially dissociate in water.

\(CH_3COOH\rightleftharpoons CH_3COO^-+H^+\)

Oseni

The compound that yields H+ as the only positive ions when in solution are generally acidic.

Definition of acids

Acids are generally defined as substances that produce hydrogen ions as their only positive ions in aqueous solutions.

Going by this definition, only CH3COOH is able to ionize in an aqueous solution according to the following:

CH3COOH ---------> CH3COO- + H+

Others ionize to give positive ions other than H+.

More on the definition of acids can be found here: https://brainly.com/question/3655298