Question:
The conjugate base of \(NH_3\) is
The conjugate base of \(NH_3\) is
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A conjugate base is obtained by removing one \(H^+\) from an acid. A conjugate acid is obtained by adding one \(H^+\) to a base.
Updated On: Jun 18, 2026
- \(NH_4^+\)
- \(NH_4OH\)
- \(NH_2^-\)
- \(NH_2\)
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The Correct Option is C
Solution and Explanation
Step 1: Recall the meaning of conjugate base.
A conjugate base is formed when an acid loses one proton.
That is, \[ \text{Acid} \rightarrow \text{Conjugate base}+H^+ \]
Step 2: Remove one proton from ammonia.
For ammonia, \[ NH_3 \] On losing one proton, \[ NH_3 \rightarrow NH_2^- + H^+ \] Thus, the conjugate base of \(NH_3\) is \[ NH_2^- \]
Step 3: Check the other options.
\[ NH_4^+ \] is the conjugate acid of \(NH_3\), because it is formed by accepting one proton.
\[ NH_4OH \] is ammonium hydroxide, not the conjugate base of ammonia.
\[ NH_2 \] does not represent the proper charged conjugate base.
Step 4: Final conclusion.
Therefore, \[ \boxed{NH_2^-} \] Hence, the correct option is (3).
A conjugate base is formed when an acid loses one proton.
That is, \[ \text{Acid} \rightarrow \text{Conjugate base}+H^+ \]
Step 2: Remove one proton from ammonia.
For ammonia, \[ NH_3 \] On losing one proton, \[ NH_3 \rightarrow NH_2^- + H^+ \] Thus, the conjugate base of \(NH_3\) is \[ NH_2^- \]
Step 3: Check the other options.
\[ NH_4^+ \] is the conjugate acid of \(NH_3\), because it is formed by accepting one proton.
\[ NH_4OH \] is ammonium hydroxide, not the conjugate base of ammonia.
\[ NH_2 \] does not represent the proper charged conjugate base.
Step 4: Final conclusion.
Therefore, \[ \boxed{NH_2^-} \] Hence, the correct option is (3).
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