Question:

The disproportionation products of ortho phosphorous acid are:

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In disproportionation reactions, the same element gets both oxidized and reduced in different products.
Updated On: Mar 19, 2025
  • \( \text{H}_3\text{PO}_4, \text{PH}_3 \)
  • \( \text{H}_3\text{PO}_2, \text{H}_3\text{PO}_3 \)
  • \( \text{H}_3\text{PO}_4, \text{HPO}_3 \)
  • \( \text{H}_3\text{PO}_2, \text{P}_2\text{H}_4 \)
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The Correct Option is A

Solution and Explanation

Step 1: Understanding Disproportionation Reaction Disproportionation reactions involve a single species undergoing both oxidation and reduction. Ortho phosphorous acid (\( H_3PO_3 \)) disproportionates as follows: \[ 4H_3PO_3 \rightarrow 3H_3PO_4 + PH_3 \] Step 2: Identifying the Products Here, phosphoric acid (\( H_3PO_4 \)) is the oxidation product and phosphine (\( PH_3 \)) is the reduction product.
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