Question:medium
Given below are two statements:
Statement (I) : A Buffer solution is the mixture of a salt and an acid or a base mixed in any particular quantities.
Statement (II) : Blood is naturally occurring buffer solution whose pH is maintained by $H_2CO_3/HCO_3^-$ concentrations.
In the light of the above statements, choose the correct answer from the options given below.
Given below are two statements:
Statement (I) : A Buffer solution is the mixture of a salt and an acid or a base mixed in any particular quantities.
Statement (II) : Blood is naturally occurring buffer solution whose pH is maintained by $H_2CO_3/HCO_3^-$ concentrations.
In the light of the above statements, choose the correct answer from the options given below.
Statement (I) : A Buffer solution is the mixture of a salt and an acid or a base mixed in any particular quantities.
Statement (II) : Blood is naturally occurring buffer solution whose pH is maintained by $H_2CO_3/HCO_3^-$ concentrations.
In the light of the above statements, choose the correct answer from the options given below.
Updated On: Mar 19, 2026
- Statement I is false but Statement II is true
- Both Statement I and Statement II is true
- Both Statement I and Statement II is false
- Statement I is true but Statement II is false
Show Solution
The Correct Option is A
Solution and Explanation
Analyze the validity of the provided statements regarding buffer solutions and physiological examples like blood.
- Statement I: "A Buffer solution is the mixture of a salt and an acid or a base mixed in any particular quantities."
- This statement is false. A buffer solution is specifically a mixture of a weak acid and its conjugate base, or a weak base and its conjugate acid, in appropriate proportions. This composition allows for pH stability when small amounts of acid or base are introduced.
- Statement II: "Blood is naturally occurring buffer solution whose pH is maintained by \(H_2CO_3/HCO_3^-\) concentrations."
- This statement is true. Blood functions as a natural buffer system, primarily regulated by the carbonic acid (\(H_2CO_3\)) and bicarbonate (\(HCO_3^−\)) pair. This system effectively maintains blood pH within the physiological range of approximately 7.4.
In summary, Statement I is false, while Statement II is true. This accurately reflects the definition of buffer solutions and the specific buffering action observed in blood.
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