Answer
Verified
394.8k+ views
Hint: The molecular formula of phosphoric acid shows that it has one atom greater in number of oxygen than orthophosphorus acid. Thus, by addition of oxygen atom, one can get phosphoric acid.
Complete step by step answer:
The orthophosphorus acid is the common name. In IUPAC nomenclature, it is called Phosphonic acid. The ${H_3}P{O_3}$ is a diprotic acid i.e. it can donate only two protons. Thus structurally, the formula for orthophosphorus acid can be written as $HPO{(OH)_2}$.
This is not so stable in nature and reacts easily with the moisture in the air.
The phosphoric acid is a weak triprotic acid. There are various methods for its synthesis. It can be even prepared from orthophosphorus acid as -
${H_3}P{O_3} + \frac{1}{2}{O_2} \rightleftharpoons \;{H_3}P{O_4}$
The orthophosphorus acid gets converted to phosphoric acid in the presence of oxygen which is present in moisture. This reaction is reversible in nature. There is another alternative which is to heat orthophosphorus acid above ${180^0}$ C temperature. Even on heating at such a high temperature also, the orthophosphorus acid gets converted to phosphoric acid.
Note:
The orthophosphorus acid is unstable because in the presence of moisture, it gets converted to phosphoric acid. The phosphoric acid is stable in nature. It is a viscous liquid which has no colour and even no odour. Even the phosphoric acid is a weak acid in nature but it is stable. Its solution which is 85 % concentrated can produce irritation on eyes and skin.
Complete step by step answer:
The orthophosphorus acid is the common name. In IUPAC nomenclature, it is called Phosphonic acid. The ${H_3}P{O_3}$ is a diprotic acid i.e. it can donate only two protons. Thus structurally, the formula for orthophosphorus acid can be written as $HPO{(OH)_2}$.
This is not so stable in nature and reacts easily with the moisture in the air.
The phosphoric acid is a weak triprotic acid. There are various methods for its synthesis. It can be even prepared from orthophosphorus acid as -
${H_3}P{O_3} + \frac{1}{2}{O_2} \rightleftharpoons \;{H_3}P{O_4}$
The orthophosphorus acid gets converted to phosphoric acid in the presence of oxygen which is present in moisture. This reaction is reversible in nature. There is another alternative which is to heat orthophosphorus acid above ${180^0}$ C temperature. Even on heating at such a high temperature also, the orthophosphorus acid gets converted to phosphoric acid.
Note:
The orthophosphorus acid is unstable because in the presence of moisture, it gets converted to phosphoric acid. The phosphoric acid is stable in nature. It is a viscous liquid which has no colour and even no odour. Even the phosphoric acid is a weak acid in nature but it is stable. Its solution which is 85 % concentrated can produce irritation on eyes and skin.
Recently Updated Pages
Basicity of sulphurous acid and sulphuric acid are
Three beakers labelled as A B and C each containing 25 mL of water were taken A small amount of NaOH anhydrous CuSO4 and NaCl were added to the beakers A B and C respectively It was observed that there was an increase in the temperature of the solutions contained in beakers A and B whereas in case of beaker C the temperature of the solution falls Which one of the following statements isarecorrect i In beakers A and B exothermic process has occurred ii In beakers A and B endothermic process has occurred iii In beaker C exothermic process has occurred iv In beaker C endothermic process has occurred
What is the stopping potential when the metal with class 12 physics JEE_Main
The momentum of a photon is 2 times 10 16gm cmsec Its class 12 physics JEE_Main
How do you arrange NH4 + BF3 H2O C2H2 in increasing class 11 chemistry CBSE
Is H mCT and q mCT the same thing If so which is more class 11 chemistry CBSE
Trending doubts
State the differences between manure and fertilize class 8 biology CBSE
Why are xylem and phloem called complex tissues aBoth class 11 biology CBSE
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Difference Between Plant Cell and Animal Cell
What would happen if plasma membrane ruptures or breaks class 11 biology CBSE
Give 10 examples for herbs , shrubs , climbers , creepers
What precautions do you take while observing the nucleus class 11 biology CBSE
What would happen to the life of a cell if there was class 11 biology CBSE
Change the following sentences into negative and interrogative class 10 english CBSE