Assertion (A) Buffer solution are composed of strong acids and strong bases. Reason (R) It maintain the pH to a constant value of 7.4.

Question

Assertion (A) Buffer solution are composed of strong acids and strong bases. Reason (R) It maintain the pH to a constant value of 7.4. (A) Both Assertion and Reason are true and Reason is the correct explanation of Assertion (B) Both Assertion and Reason are true but Reason is not the correct explanation of Assertion (C) Assertion is true but Reason is false (D) Both Assertion and Reason are false

Tardigrade Admin · Accepted Answer

Both (A) and (R) are false as buffer solution are made by mixing weak acid with its salt of strong base or by mixing weak base with salt of strong acid. It is never formed by mixing strong acid and strong base.
The

p H

of buffer solution remain constant but not always equal to

7.4

.

Q. Assertion (A) Buffer solution are composed of strong acids and strong bases. Reason (R) It maintain the pH to a constant value of 7.4.

Both Assertion and Reason are true and Reason is the correct explanation of Assertion

Both Assertion and Reason are true but Reason is not the correct explanation of Assertion

Assertion is true but Reason is false

Both Assertion and Reason are false

Both (A) and (R) are false as buffer solution are made by mixing weak acid with its salt of strong base or by mixing weak base with salt of strong acid. It is never formed by mixing strong acid and strong base. The pH of buffer solution remain constant but not always equal to 7.4.

Q. Assertion (A) Buffer solution are composed of strong acids and strong bases.
Reason (R) It maintain the $p H$ to a constant value of $7.4$ .

Both (A) and (R) are false as buffer solution are made by mixing weak acid with its salt of strong base or by mixing weak base with salt of strong acid. It is never formed by mixing strong acid and strong base.
The $p H$ of buffer solution remain constant but not always equal to $7.4$ .