Home
Class 12
CHEMISTRY
Which of these is not a buffer solution ...

Which of these is not a buffer solution ?

A

`NH_(4)Cl + NH_(4)OH`

B

`CH_(3)COOH + CH_(3)COONa`

C

`CH_(3)COONH_(4)`

D

Borax `+` Boric acid

Text Solution

AI Generated Solution

The correct Answer is:
To determine which of the given solutions is not a buffer solution, we need to understand the composition of buffer solutions. A buffer solution is typically made up of a weak acid and its conjugate base or a weak base and its conjugate acid. ### Step-by-Step Solution: 1. **Identify the Components of Each Option**: - **Option 1**: Ammonium Fluoride (NH4F) and Ammonium Hydroxide (NH4OH) - **Option 2**: Acetic Acid (CH3COOH) and Sodium Acetate (CH3COONa) - **Option 3**: Ammonium Acetate (CH3COONH4) - **Option 4**: Borax (Na2B4O5) and Boric Acid (H3BO3) 2. **Analyze Each Option**: - **Option 1**: Ammonium Hydroxide is a weak base, and Ammonium Fluoride can provide the conjugate acid (NH4+). This forms a buffer solution. - **Option 2**: Acetic Acid is a weak acid, and Sodium Acetate provides the conjugate base (CH3COO-). This forms a buffer solution. - **Option 3**: Ammonium Acetate is made from a weak acid (acetic acid) and a weak base (ammonium hydroxide). However, it does not provide a strong acid or strong base, which is necessary for forming a buffer. Thus, it does not create a proper buffer solution. - **Option 4**: Borax (a salt of a weak acid) and Boric Acid (a weak acid) can form a buffer solution since it consists of a weak acid and its conjugate base. 3. **Conclusion**: - Based on the analysis, **Option 3 (Ammonium Acetate)** is not a buffer solution because it does not contain a strong acid or strong base necessary for buffering action. ### Final Answer: **Option 3: Ammonium Acetate (CH3COONH4) is not a buffer solution.**
Promotional Banner

Similar Questions

Explore conceptually related problems

Which solution is not a buffer solution ?

A solution capable of maintaining its pH relatively constatn, when either excess acid or excess base is added, is said to be buffered While it is not usually considered a buffered solution, a concentrated solution (10^(-2) M and higher) of a strong acid or stong base is buffered against large changes in pH when acids or bases are added. Buffered solutions are usually those containing a wealk acid and a salt of that weak acid or a weak base and the salt of that weak base. For example a solution containing HAc and NaAC resists large change in pH when acid or alkali is added. For a buffer solution Buiffer capacity is defined as the number of moles of a strong acid or a strong base that causes 1 of the buffer to undergo a 1 unit change in pH. Buffer capacity is maximum when the molar ratio of the two components is unity and the buffer solution is considerred good. Which solution is not a buffer solution ?

Out of the following , which pair of solutions is not a buffer solution ?

Which is a buffer solution?

From the following table Which of the two sets of buffer solutions have least P^(H) ?

Buffer Solutions

Buffer Solutions

Which of the following is a buffer solution?