Answer
Verified
36.9k+ views
Hint: The weak bases act as the differentiating solvents for acids as the acid can be differentiated due to the base’s leveling effect. Acetic acid is a weak base.
Step-by-Step Explanation: The solvent is the liquid in which a substance (solute) is easily dissolved to form a solution. The strength of strong acid is limited or leveled by the use of a basic solvent due to its basicity. When a strong acid is dissolved in a weakly basic solvent like acetic acid it exhibits more acidic properties than acetic acid as acetic acid has poor proton accepting character. Here, Acetic acid is used as a differentiating solvent for acids as the stronger acids are only slightly dissociated in acetic acid. Since acetic acid has less tendency to accept the proton donated, the strong acid only slightly dissociates. The reaction of acid HA with acetic acid will give an acid and a base ion. The reaction is as follows-
$ \Rightarrow {\text{HA + C}}{{\text{H}}_3}{\text{COOH}} \rightleftharpoons \left( {{\text{C}}{{\text{H}}_3}{\text{COOH}}_2^ + } \right) + {{\text{A}}^ - }$
Here if the acid HA is strong then the reaction will not lie very much to the right side of the equilibrium because the acetic acid (acts as a basic solvent) is poor acceptor of proton so the dissociated ${{\text{H}}^ + }$ ion will again form acid from which it was dissociated. Thus strong acid only slightly dissociates whereas weak acids completely dissociate. So the acids dissociate to different degrees in basic solvent which helps in differentiating the acids.
Hence, the correct answer is ‘A’.
Note: The weak bases act as differentiating solvent for acids. Similarly strong bases act as leveling solvent for acids as strong bases have greater affinity for protons so all acids become indistinguishable in strength when dissolved in strongly basic solvent. This effect of base is called leveling effect. As the strong base has a very high affinity for proton so even the strong acids will completely dissociate in it so the strength of strong and weak acids cannot be differentiated.
Step-by-Step Explanation: The solvent is the liquid in which a substance (solute) is easily dissolved to form a solution. The strength of strong acid is limited or leveled by the use of a basic solvent due to its basicity. When a strong acid is dissolved in a weakly basic solvent like acetic acid it exhibits more acidic properties than acetic acid as acetic acid has poor proton accepting character. Here, Acetic acid is used as a differentiating solvent for acids as the stronger acids are only slightly dissociated in acetic acid. Since acetic acid has less tendency to accept the proton donated, the strong acid only slightly dissociates. The reaction of acid HA with acetic acid will give an acid and a base ion. The reaction is as follows-
$ \Rightarrow {\text{HA + C}}{{\text{H}}_3}{\text{COOH}} \rightleftharpoons \left( {{\text{C}}{{\text{H}}_3}{\text{COOH}}_2^ + } \right) + {{\text{A}}^ - }$
Here if the acid HA is strong then the reaction will not lie very much to the right side of the equilibrium because the acetic acid (acts as a basic solvent) is poor acceptor of proton so the dissociated ${{\text{H}}^ + }$ ion will again form acid from which it was dissociated. Thus strong acid only slightly dissociates whereas weak acids completely dissociate. So the acids dissociate to different degrees in basic solvent which helps in differentiating the acids.
Hence, the correct answer is ‘A’.
Note: The weak bases act as differentiating solvent for acids. Similarly strong bases act as leveling solvent for acids as strong bases have greater affinity for protons so all acids become indistinguishable in strength when dissolved in strongly basic solvent. This effect of base is called leveling effect. As the strong base has a very high affinity for proton so even the strong acids will completely dissociate in it so the strength of strong and weak acids cannot be differentiated.
Recently Updated Pages
To get a maximum current in an external resistance class 1 physics JEE_Main
If a wire of resistance R is stretched to double of class 12 physics JEE_Main
Let f be a twice differentiable such that fleft x rightfleft class 11 maths JEE_Main
Find the points of intersection of the tangents at class 11 maths JEE_Main
For the two circles x2+y216 and x2+y22y0 there isare class 11 maths JEE_Main
The path difference between two waves for constructive class 11 physics JEE_MAIN
Other Pages
Explain the construction and working of a GeigerMuller class 12 physics JEE_Main
The cell in the circuit shown in the figure is ideal class 12 physics JEE_Main
Two charges 9e and 3e are placed at a separation r class 12 physics JEE_Main
For an electromagnet the core should have A High retentivity class 12 physics JEE_Main
Dissolving 120g of urea molwt60 in 1000g of water gave class 11 chemistry JEE_Main
A closed organ pipe and an open organ pipe are tuned class 11 physics JEE_Main