Assertion: In an acid-base titration involving strong base and a weak acid, methyl orange can be used as an indicator. Reason: Methyl orange changes its colour in pH range of 7 to 9.

Question

Assertion: In an acid-base titration involving strong base and a weak acid, methyl orange can be used as an indicator. Reason: Methyl orange changes its colour in pH range of 7 to 9. (A) If both assertion and reason are true and reason is the correct explanation of assertion (B) If both assertion and reason are true but reason is not the correct explanation of assertion (C) If assertion is true but reason is false (D) If both assertion and reason are false

Tardigrade Admin · Accepted Answer

In a titration of strong base and weak acid phenolphthalein is used as indicator. Methyl orange changes its colour in pH of range 3 to 5.

Q. Assertion: In an acid-base titration involving strong base and a weak acid, methyl orange can be used as an indicator.
Reason: Methyl orange changes its colour in $p H$ range of $7$ to $9$ .

If both assertion and reason are true and reason is the correct explanation of assertion

If both assertion and reason are true but reason is not the correct explanation of assertion

If assertion is true but reason is false

If both assertion and reason are false

In a titration of strong base and weak acid phenolphthalein is used as indicator.
Methyl orange changes its colour in $p H$ of range $3$ to $5$ .

Q. Assertion: In an acid-base titration involving strong base and a weak acid, methyl orange can be used as an indicator. Reason: Methyl orange changes its colour in pH range of 7 to 9.