QUESTION 13 Which of the following statements is/are not correct? Select all inc

Question

QUESTION 13 Which of the following statements is/are not correct? Select all incorrect statements. The dilution of a buffer causes no significant change in its pH. The dilution of a buffer lowers its buffer capacity. A buffer solution can be prepared using a weak base and its conjugate acid. A buffer solution can be prepared using a weak acid and its conjugate base The addition of strong acid or base to a buffer does not change its buffer capacity. Pure water acts as a buffer solution with a pH of 7.

Explanation / Answer

LAST TWO STATEMENTS ARE NOT CORRECT...

ADDITION OF A STRONG ACID OR STRONG BASE WILL DEFINITELY CHANGE MOLES OF SALT/ACID/BASE SO BUFFER CAPACITY WILL CHANGE.

PURE WATER pH WILL CHANGE ON ADDITION OF A ACID OR BASE SO ITS NOT A BUFFER.

REST ALL STATEMENT ARE CORRECT...

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