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Which one of the following pairs of solution is an acidic buffer? A) H2CO3 and Na2CO3 B) H3PO4 and Na3PO4 C) HClO4 and NaClO4 D) CH3COOH and CH3COONa?
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Which one of the following pairs of solution is an acidic buffer? A) H...
4 option becz. in one is week acid and other is salt of that weak acid this is condition of acidic buffer..
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Which one of the following pairs of solution is an acidic buffer? A) H...
Answer:
Introduction:
An acidic buffer is a solution that resists changes in pH when an acid or base is added to it. It consists of a weak acid and its conjugate base. When an acid is added, the conjugate base of the weak acid reacts with the added acid, preventing a significant change in pH.
Options:
A) H2CO3 and Na2CO3
B) H3PO4 and Na3PO4
C) HClO4 and NaClO4
D) CH3COOH and CH3COONa
Analysis:
To determine which pair of solutions is an acidic buffer, we need to identify a weak acid and its conjugate base.
A) H2CO3 and Na2CO3:
H2CO3 is a weak acid (carbonic acid) and Na2CO3 is its conjugate base. This pair can act as a buffer in the acidic range, making it a potential acidic buffer.
B) H3PO4 and Na3PO4:
H3PO4 is a strong acid (phosphoric acid) and Na3PO4 is its conjugate base. Since H3PO4 is a strong acid, it will dissociate completely in water, making this pair unsuitable as an acidic buffer.
C) HClO4 and NaClO4:
HClO4 is a strong acid (perchloric acid) and NaClO4 is its conjugate base. Similar to the previous option, this pair is not suitable as an acidic buffer because HClO4 is a strong acid.
D) CH3COOH and CH3COONa:
CH3COOH is a weak acid (acetic acid) and CH3COONa is its conjugate base. This pair can act as an acidic buffer, as acetic acid partially dissociates in water and its conjugate base can react with added acid to maintain a relatively constant pH.
Conclusion:
Based on the analysis, the pair of solutions that is an acidic buffer is option D) CH3COOH and CH3COONa.
Introduction:
An acidic buffer is a solution that resists changes in pH when an acid or base is added to it. It consists of a weak acid and its conjugate base. When an acid is added, the conjugate base of the weak acid reacts with the added acid, preventing a significant change in pH.
Options:
A) H2CO3 and Na2CO3
B) H3PO4 and Na3PO4
C) HClO4 and NaClO4
D) CH3COOH and CH3COONa
Analysis:
To determine which pair of solutions is an acidic buffer, we need to identify a weak acid and its conjugate base.
A) H2CO3 and Na2CO3:
H2CO3 is a weak acid (carbonic acid) and Na2CO3 is its conjugate base. This pair can act as a buffer in the acidic range, making it a potential acidic buffer.
B) H3PO4 and Na3PO4:
H3PO4 is a strong acid (phosphoric acid) and Na3PO4 is its conjugate base. Since H3PO4 is a strong acid, it will dissociate completely in water, making this pair unsuitable as an acidic buffer.
C) HClO4 and NaClO4:
HClO4 is a strong acid (perchloric acid) and NaClO4 is its conjugate base. Similar to the previous option, this pair is not suitable as an acidic buffer because HClO4 is a strong acid.
D) CH3COOH and CH3COONa:
CH3COOH is a weak acid (acetic acid) and CH3COONa is its conjugate base. This pair can act as an acidic buffer, as acetic acid partially dissociates in water and its conjugate base can react with added acid to maintain a relatively constant pH.
Conclusion:
Based on the analysis, the pair of solutions that is an acidic buffer is option D) CH3COOH and CH3COONa.
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Which one of the following pairs of solution is an acidic buffer? A) H2CO3 and Na2CO3 B) H3PO4 and Na3PO4 C) HClO4 and NaClO4 D) CH3COOH and CH3COONa?
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Which one of the following pairs of solution is an acidic buffer? A) H2CO3 and Na2CO3 B) H3PO4 and Na3PO4 C) HClO4 and NaClO4 D) CH3COOH and CH3COONa? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which one of the following pairs of solution is an acidic buffer? A) H2CO3 and Na2CO3 B) H3PO4 and Na3PO4 C) HClO4 and NaClO4 D) CH3COOH and CH3COONa? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following pairs of solution is an acidic buffer? A) H2CO3 and Na2CO3 B) H3PO4 and Na3PO4 C) HClO4 and NaClO4 D) CH3COOH and CH3COONa?.
Which one of the following pairs of solution is an acidic buffer? A) H2CO3 and Na2CO3 B) H3PO4 and Na3PO4 C) HClO4 and NaClO4 D) CH3COOH and CH3COONa? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which one of the following pairs of solution is an acidic buffer? A) H2CO3 and Na2CO3 B) H3PO4 and Na3PO4 C) HClO4 and NaClO4 D) CH3COOH and CH3COONa? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following pairs of solution is an acidic buffer? A) H2CO3 and Na2CO3 B) H3PO4 and Na3PO4 C) HClO4 and NaClO4 D) CH3COOH and CH3COONa?.
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