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To obtain a buffer wich should be suitab...

To obtain a buffer wich should be suitable for maintaining a pH of about 4-5, we need to have in solution, a mixture of

A

A strong base + its salt with a weak acid

B

A weak base + its salt with a strong acid

C

A strong acid + its salt with a weak base

D

A weak acid + its salt with a strong base

Text Solution

Verified by Experts

The correct Answer is:
D
A weak acid and its salt with a strong base maintain pH 4-5.
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