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What is the disproportionation reaction of #H_3PO_3#?

Answer 1

#4H_3##PO_3# ----------> #3H_3##PO_4# + #PH_3#

Disproportionation is a type of redox reaction where an element from a reaction undergoes both oxidation and reduction to form two different types of products. Similarly in case of #H_3##PO_3# gives two products on diproportionation on heating.

On heating #H_3##PO_3# it undergoes disproportionation reaction to give ortho phosphoric acid and phosphine. #4H_3##PO_3# ----------> #3H_3##PO_4# + #PH_3#

Every element experiences both reduction and oxidation:

Oxidation half reaction = #H_3##PO_3# ----------> #H_3##PO_4#

Reduction half reaction #H_3##PO_3# ----------> #PH_3#

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Answer 2

Avery Adams

The disproportionation reaction of H3PO3 involves the oxidation of phosphorus from a lower to a higher oxidation state, resulting in both reduction and oxidation products. Specifically, H3PO3 disproportionates into phosphorous acid (H3PO3) and phosphoric acid (H3PO4). The reaction is as follows:

4H3PO3 → 3H3PO4 + PH3

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.