What is the nbsp-necessary condition for the preparation of metaphosphorus acid by reaction of nbsp-phosphorus acid with - Br-2-Simply heatingHeating in a sealed tubeReaction is spontaneousNone

The correct option is B Heating in a sealed tubeB. Heating #10;in a sealed tube.Pyrophosphoric #10;acid or Orthophosphoric acid, when heated to red hot, for ...

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Standard XII

Chemistry

Haber Bosch Process

What is the ...

Question

What is the necessary condition for the preparation of metaphosphorus acid by reaction of phosphorus acid with $B r_{2}$ ?

Simply heating

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Heating in a sealed tube

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Reaction is spontaneous

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None

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Solution

The correct option is B Heating in a sealed tube
B. Heating in a sealed tube.
Pyrophosphoric acid or Orthophosphoric acid, when heated to red hot, forms metaphosphoricacid acid.
$H_{4} P_{2} O_{7} \to 2 H P O_{3} + H_{2} O$
Crystalline phosphorus acid, on being heated with bromine in a sealed tube, gives metaphosphoricacid acid.
$H_{3} P O_{3} + B r_{2} \to H P O_{3} + 2 H B r$
Metaphosphoricacid acid exists as a polymer.

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What is the necessary condition for the preparation of metaphosphorus acid by reaction of phosphorus acid with Br2?

What is the necessary condition for the preparation of metaphosphorus acid by reaction of phosphorus acid with $B r_{2}$ ?