Statement: In an acid-basic titration involving a strong base and a weak acid, methyl orange can be used as an indicator.
Explanation: Methyl orange changes its colour in the pH range 3 to 5.

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

This question has statement I and Statement II. Of the four choices given after the Statements, choose the one that best describes the two Statements. Statement-1 In the acid-base titration involving strong base and weak acid, methyl red can be used as an indicator. Statement-II: Methyl red changes its colour in the pH range 4.2 to 6.3

STATEMENT-1: In the acid-base titration involving strong base and weak acid, methyl red can be used as an indicator. STATEMENT-2: Methyl red changes its colour in the pH range 4.2 to 6.3.

STATEMENT-1: In the acid-base titration involving strong base and weak acid, methyl red can be usedd as an indicator. STATEMENT-2: Methyl red changes its colour in the pH range 4.2 to 6.3.

The range of ph in which methyl orange works as indicator:

During the titration of a weak base with a strong acid, one should use an acid-base indicator that changes colour in the :

For weak acid strong base titration the indicator used is :