Answer
Verified
82.5k+ views
Hint: To know whether ${\text{NaN}}{{\text{O}}_{\text{2}}}$ and ${\text{HN}}{{\text{O}}_{\text{2}}}$ makes an equimolar solution or not, we should whether both the compounds are strong or weak base and acid respectively. Once we know that, we can analyse the characteristics to term them as one among the mentioned options.
Complete step-by-step answer:
We all know that, ${\text{HN}}{{\text{O}}_{\text{2}}}$ is a weak acid. ${\text{HN}}{{\text{O}}_{\text{2}}}$ partially dissociates in the aqueous solution. Here is the equation of the dissociation of ${\text{HN}}{{\text{O}}_{\text{2}}}$ :
${\text{NaN}}{{\text{O}}_{\text{2}}}$ is the example of a salt, which is formed by the reaction between weak acid and strong base. The weak acid is ${\text{HN}}{{\text{O}}_{\text{2}}}$ and the strong base is NaOH. Here is the structure of ${\text{NaN}}{{\text{O}}_{\text{2}}}$:
The equation for the formation of ${\text{NaN}}{{\text{O}}_{\text{2}}}$ is :
$\text{HN}{{\text{O}}_{\text{2}}}\text{+NaOH}\xrightarrow{{}}\text{NaN}{{\text{O}}_{\text{2}}}\text{+}{{\text{H}}_{\text{2}}}\text{O}$
We know, a buffer solution is an aqueous solution consisting of a mixture of a weak acid and its conjugate base or vice versa. Its pH changes very little when a small amount of strong acid or base is added to it. Therefore, an equimolar solution of ${\text{NaN}}{{\text{O}}_{\text{2}}}$ and ${\text{HN}}{{\text{O}}_{\text{2}}}$ can act as a buffer solution.
So the correct answer is Option C.
Note: Buffer solutions have pH more than 7, are known as acidic buffer solutions.
A buffer is a solution that can resist pH change upon the addition of acidic or basic components. It is able to neutralize small amounts of added acid or base, does maintain the pH of the solution relatively stable. This is important for the processes and or reactions which requires specific and stable pH ranges.
Complete step-by-step answer:
We all know that, ${\text{HN}}{{\text{O}}_{\text{2}}}$ is a weak acid. ${\text{HN}}{{\text{O}}_{\text{2}}}$ partially dissociates in the aqueous solution. Here is the equation of the dissociation of ${\text{HN}}{{\text{O}}_{\text{2}}}$ :
${\text{NaN}}{{\text{O}}_{\text{2}}}$ is the example of a salt, which is formed by the reaction between weak acid and strong base. The weak acid is ${\text{HN}}{{\text{O}}_{\text{2}}}$ and the strong base is NaOH. Here is the structure of ${\text{NaN}}{{\text{O}}_{\text{2}}}$:
The equation for the formation of ${\text{NaN}}{{\text{O}}_{\text{2}}}$ is :
$\text{HN}{{\text{O}}_{\text{2}}}\text{+NaOH}\xrightarrow{{}}\text{NaN}{{\text{O}}_{\text{2}}}\text{+}{{\text{H}}_{\text{2}}}\text{O}$
We know, a buffer solution is an aqueous solution consisting of a mixture of a weak acid and its conjugate base or vice versa. Its pH changes very little when a small amount of strong acid or base is added to it. Therefore, an equimolar solution of ${\text{NaN}}{{\text{O}}_{\text{2}}}$ and ${\text{HN}}{{\text{O}}_{\text{2}}}$ can act as a buffer solution.
So the correct answer is Option C.
Note: Buffer solutions have pH more than 7, are known as acidic buffer solutions.
A buffer is a solution that can resist pH change upon the addition of acidic or basic components. It is able to neutralize small amounts of added acid or base, does maintain the pH of the solution relatively stable. This is important for the processes and or reactions which requires specific and stable pH ranges.
Recently Updated Pages
Name the scale on which the destructive energy of an class 11 physics JEE_Main
Write an article on the need and importance of sports class 10 english JEE_Main
Choose the exact meaning of the given idiomphrase The class 9 english JEE_Main
Choose the one which best expresses the meaning of class 9 english JEE_Main
What does a hydrometer consist of A A cylindrical stem class 9 physics JEE_Main
A motorcyclist of mass m is to negotiate a curve of class 9 physics JEE_Main
Other Pages
A necklace weighing 50g in air but it weighs 46g in class 11 physics JEE_Main
If radius of earth is R then the height h at which class 11 physics JEE_Main
The radius of two metallic sphere A and B are r1 and class 12 physics JEE_Main
Electric field due to uniformly charged sphere class 12 physics JEE_Main
If a wire of resistance R is stretched to double of class 12 physics JEE_Main
Formula for number of images formed by two plane mirrors class 12 physics JEE_Main