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JEE CHEMISTRY MCQ: PRACTICAL CHEMISTRY
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Medium
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Analyzing
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Given below are two statements one is labelled as Assertion (A) and the other is labeilled as Reason.
Assertion (A): In the titration of HCl against NaOH, phenolphthalein is used as suitable indicator.
Reason (R): Phenolphthalein is pink coloured in basic medium.
In the light of above statements, choose the most appropriate answer from the options given below.
Assertion (A): In the titration of HCl against NaOH, phenolphthalein is used as suitable indicator.
Reason (R): Phenolphthalein is pink coloured in basic medium.
In the light of above statements, choose the most appropriate answer from the options given below.
View answer and explanation
Correct option: D
If both (A) and (R) are correct, but (R) is not the
correct explanation of (A)
correct explanation of (A)
Option D is correct. Both the assertion that phenolphthalein is used as an indicator in the titration of HCl against NaOH and the reason that phenolphthalein is pink in a basic medium are correct, but the reason is not the correct explanation for the assertion. Phenolphthalein is chosen because its color change occurs near the equivalence point of the titration.
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