Question:
The oxyacid of phosphorus that contains one \(P-OH\), two \(P-H\) and one \(P=O\) bonds is
The oxyacid of phosphorus that contains one \(P-OH\), two \(P-H\) and one \(P=O\) bonds is
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\(H_3PO_2\) is phosphinic acid and has only one ionizable hydrogen because only one \(P-OH\) bond is present.
Updated On: Apr 29, 2026
- Phosphinic acid
- Phosphoric acid
- Pyrophosphoric acid
- Hypophosphoric acid
- Pyrophosphorous acid
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The Correct Option is A
Solution and Explanation
Concept:
Phosphinic acid is \(H_3PO_2\). Its structure contains one \(P-OH\), two \(P-H\) bonds and one \(P=O\) bond.
Step 1: Write structure of phosphinic acid.
Phosphinic acid is: \[ H_3PO_2 \]
Step 2: Identify bonds.
Its structure may be written as: \[ H_2P(O)OH \] So it has: \[ 1(P-OH),\ 2(P-H),\ 1(P=O) \]
Step 3: Conclusion.
Therefore, the acid is phosphinic acid.
Step 1: Write structure of phosphinic acid.
Phosphinic acid is: \[ H_3PO_2 \]
Step 2: Identify bonds.
Its structure may be written as: \[ H_2P(O)OH \] So it has: \[ 1(P-OH),\ 2(P-H),\ 1(P=O) \]
Step 3: Conclusion.
Therefore, the acid is phosphinic acid.
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