Answer
Verified
399.9k+ views
Hint: Sulphurous acid is also known as trioxo sulphuric acid. It is used as a reducing agent, and it doesn’t dissociate into the hydrogen ion completely. Now, the acidity of sulphurous acid could be known.
Complete step by step solution:
First, let us know about the sulphurous acid. Sulphurous acid exists in liquid form, and is colourless. It has a pungent burning smell of sulphur.
It has chemical formula H$_2$SO$_3$, known to be sulphur oxoacid, conjugate acid of hydrogen sulfite, and tautomer of sulfonic acid.
Sulphurous acid is highly soluble in water. Thus, it dissociates, and leads to the formation of bisulfite, and sulphite ions. The dissociation reaction is:
SO$_2$ + H$_2$O $\rightleftharpoons$ HSO$_3$$^{-}$ + H$^{+}$
Now, if we have aqueous sulphurous acid, as mentioned it dissociates completely into hydrogen ions, whereas the bisulfite ion formed is too strong in the presence of a base like water to maintain the proton.
Thus, it is considered to be a weak acid, whereas sulphuric acid is a strong acid.
In the end we can conclude that sulphurous acid is a weak acid.
Additional information: Sulphurous acid is corrosive in nature, if it comes in contact with the eye, it causes damage, and inhalation can irritate the neck, and throat. It is a dibasic acid, and used as disinfectants.
Note: Don’t get confused between the sulphuric acid, and the sulphurous acid. We have already discussed the sulphurous acid. The chemical formula of sulphuric acid is H$_2$SO$_4$. It is a strong acid as it dissociates completely into hydrogen ions.
Complete step by step solution:
First, let us know about the sulphurous acid. Sulphurous acid exists in liquid form, and is colourless. It has a pungent burning smell of sulphur.
It has chemical formula H$_2$SO$_3$, known to be sulphur oxoacid, conjugate acid of hydrogen sulfite, and tautomer of sulfonic acid.
Sulphurous acid is highly soluble in water. Thus, it dissociates, and leads to the formation of bisulfite, and sulphite ions. The dissociation reaction is:
SO$_2$ + H$_2$O $\rightleftharpoons$ HSO$_3$$^{-}$ + H$^{+}$
Now, if we have aqueous sulphurous acid, as mentioned it dissociates completely into hydrogen ions, whereas the bisulfite ion formed is too strong in the presence of a base like water to maintain the proton.
Thus, it is considered to be a weak acid, whereas sulphuric acid is a strong acid.
In the end we can conclude that sulphurous acid is a weak acid.
Additional information: Sulphurous acid is corrosive in nature, if it comes in contact with the eye, it causes damage, and inhalation can irritate the neck, and throat. It is a dibasic acid, and used as disinfectants.
Note: Don’t get confused between the sulphuric acid, and the sulphurous acid. We have already discussed the sulphurous acid. The chemical formula of sulphuric acid is H$_2$SO$_4$. It is a strong acid as it dissociates completely into hydrogen ions.
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
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
Write an application to the principal requesting five class 10 english CBSE
Difference Between Plant Cell and Animal Cell
a Tabulate the differences in the characteristics of class 12 chemistry CBSE
Change the following sentences into negative and interrogative class 10 english CBSE
What organs are located on the left side of your body class 11 biology CBSE
Discuss what these phrases mean to you A a yellow wood class 9 english CBSE
List some examples of Rabi and Kharif crops class 8 biology CBSE