Assertion : In an acid-base titration involving strong base and a...

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

\mathrm{pH}

range of 7 to 9 .

Options

AIf both assertion and reason are true and reason is the correct explanation of assertion
BIf both assertion and reason are true but reason is not the correct explanation of assertion
CIf assertion is true but reason is false
DIf both assertion and reason are false.

Correct answer

D. If both assertion and reason are false.

Step-by-step solution

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

\mathrm{pH}

of range 3 to 5.

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