{P}₄{O}₁0} on reacting with water does not form

Correct Answer is : phosphorus acid

{P}₄{O}₁0} on reacting with water does not form

Correct Answer is : phosphorus acid

Test Index

CGPET 2011 Solved Paper

Section: Chemistry

Question : 69 of 150

Marks: +1, -0

\mathrm{P}_4\mathrm{O}_{10}

on reacting with water does not form

tetrametaphosphoric acid
phosphorus acid
orthophosphoric acid
pyrophosphoric acid

Validate

Solution:

Phosphorus pentoxide reacts with water to form metaphosphoric acid which reacts with excess of water to give pyrophosphoric acid and orthophosphoric acid.

\underset{\text{phosphoruspentoxide}}{\mathrm{P}_4\mathrm{O}_{10}} \xrightarrow{2\mathrm{H}_2\mathrm{O}} \underset{\text{metaphosphoric acid}}{\mathrm{HPO}_3} \xrightarrow{2\mathrm{H}_2\mathrm{O}}

\underset{\text{pyrophosphoric acid}}{2\mathrm{H}_4\mathrm{P}_2\mathrm{O}_7} \xrightarrow{2\mathrm{H}_2\mathrm{O}} \underset{\text{orthophosphoric acid}}{2\mathrm{H}_3\mathrm{PO}_4}

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