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 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 concentrations.
In the light of the above statements, choose the correct answer from the options given below.
- (A)Statement I is false but Statement II is true✓ Correct
- (B)Both Statement I and Statement II is true
- (C)Both Statement I and Statement II is false
- (D)Statement I is true but Statement II is false
Answer: (A)
Solution
Statement I is imprecise/false as worded: an effective buffer needs a weak acid (or weak base) mixed with its conjugate salt in comparable, not arbitrary, proportions — not just 'a salt and an acid or base in any quantity'.
Statement II is true: blood is a natural buffer, its pH held by the pair.
Statement I is false, Statement II is true.
Statement II is true: blood is a natural buffer, its pH held by the pair.
Statement I is false, Statement II is true.
JEE Main · 2024 · 08 Apr 2024 · Shift 2 · Single correct option