Answer
Verified
404.1k+ views
Hint: Examples of strong acids include: HCl, ${{H}_{2}}S{{O}_{4}}$ etc.
Examples of weak acids include: HCOOH, $C{{H}_{3}}COOH$ etc.
Think of what distinct chemical property differentiates these two classes of acids.
Complete step-by-step answer:
Let us discuss both these terms: strong acids and weak acids; one at a time.
A strong acid is one which is virtually 100% ionised in solution and splits into aqueous versions of its constituent cation and anion.
Some common strong acids include sulphuric acid, hydrochloric acid and nitric acid.
Here is the equation for the ionisation of Hydrochloric Acid (HCl) written in a simplified form:
$HC{{l}_{(aq)}}\to {{H}^{+}}_{(aq)}+C{{l}^{-}}_{(aq)}$
This shows the hydrogen chloride dissolved in the water splitting to give hydrogen ions in solution and chloride ions in solution.
Now let us discuss what a weak acid really is.
By contrast, a weak acid is one which doesn't ionise fully when it is dissolved in water.
Ethanoic acid is a typical weak acid. It reacts with water to produce hydronium ions and ethanoate ions, but the back reaction is more successful than the forward one. The ions react very easily to reform the acid and the water.
$C{{H}_{3}}COOH+{{H}_{2}}O \longrightarrow C{{H}_{3}}CO{{O}^{-}}+H_3{{O}^{+}}$
At any one time, only about 1% of the ethanoic acid molecules have converted into ions. The rest remain as simple ethanoic acid molecules.
Therefore, from the above analysis and explanation we can conclude that the answer to this question is a).
NOTE: Please be as clear as possible with the concept of ionisation in water of different compounds as the knowledge of this concept is essential for you to be able to solve this question easily.
Examples of weak acids include: HCOOH, $C{{H}_{3}}COOH$ etc.
Think of what distinct chemical property differentiates these two classes of acids.
Complete step-by-step answer:
Let us discuss both these terms: strong acids and weak acids; one at a time.
A strong acid is one which is virtually 100% ionised in solution and splits into aqueous versions of its constituent cation and anion.
Some common strong acids include sulphuric acid, hydrochloric acid and nitric acid.
Here is the equation for the ionisation of Hydrochloric Acid (HCl) written in a simplified form:
$HC{{l}_{(aq)}}\to {{H}^{+}}_{(aq)}+C{{l}^{-}}_{(aq)}$
This shows the hydrogen chloride dissolved in the water splitting to give hydrogen ions in solution and chloride ions in solution.
Now let us discuss what a weak acid really is.
By contrast, a weak acid is one which doesn't ionise fully when it is dissolved in water.
Ethanoic acid is a typical weak acid. It reacts with water to produce hydronium ions and ethanoate ions, but the back reaction is more successful than the forward one. The ions react very easily to reform the acid and the water.
$C{{H}_{3}}COOH+{{H}_{2}}O \longrightarrow C{{H}_{3}}CO{{O}^{-}}+H_3{{O}^{+}}$
At any one time, only about 1% of the ethanoic acid molecules have converted into ions. The rest remain as simple ethanoic acid molecules.
Therefore, from the above analysis and explanation we can conclude that the answer to this question is a).
NOTE: Please be as clear as possible with the concept of ionisation in water of different compounds as the knowledge of this concept is essential for you to be able to solve this question easily.
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
Difference Between Plant Cell and Animal Cell
Select the word that is correctly spelled a Twelveth class 10 english CBSE
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
What is the z value for a 90 95 and 99 percent confidence class 11 maths CBSE
Give 10 examples for herbs , shrubs , climbers , creepers
What organs are located on the left side of your body class 11 biology CBSE
What is BLO What is the full form of BLO class 8 social science CBSE
Change the following sentences into negative and interrogative class 10 english CBSE