Question:
According to Arrhenius theory of acids and bases, which of the following is an example of Arrhenius base?
According to Arrhenius theory of acids and bases, which of the following is an example of Arrhenius base?
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Arrhenius bases directly produce \(OH^-\) ions in aqueous solution.
Updated On: May 7, 2026
- \(H_2SO_4\)
- \(NH_3\)
- \(NaOH\)
- \(CaO\)
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The Correct Option is C
Solution and Explanation
Concept:
According to Arrhenius theory, a base is a substance that gives hydroxide ions:
\[
OH^-
\]
in aqueous solution.
Step 1: \(H_2SO_4\) gives \(H^+\), so it is an acid.
Step 2: \(NH_3\) is a base by Bronsted-Lowry concept, but it does not directly contain \(OH^-\).
Step 3: \(NaOH\) dissociates in water as: \[ NaOH \rightarrow Na^+ + OH^- \]
Step 4: Hence, \(NaOH\) is an Arrhenius base. Therefore, \[ \boxed{NaOH} \]
Step 1: \(H_2SO_4\) gives \(H^+\), so it is an acid.
Step 2: \(NH_3\) is a base by Bronsted-Lowry concept, but it does not directly contain \(OH^-\).
Step 3: \(NaOH\) dissociates in water as: \[ NaOH \rightarrow Na^+ + OH^- \]
Step 4: Hence, \(NaOH\) is an Arrhenius base. Therefore, \[ \boxed{NaOH} \]
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