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Redox Reactions question

2022 · 26 Jul · Shift 2 · Q12

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PYQ Library
JEE Main
Chemistry
Redox Reactions
2022 · 26 Jul · Shift 2 · Q12

Redox Reactions question

2022 · 26 Jul · Shift 2 · Q12

JEE MainChemistryRedox ReactionsMCQ+4 / −1

Given below are two statements: one is labelled as Assertion

\mathbf{A}

and the other is labelled as Reason

\mathbf{R}

. Assertion A: Phenolphthalein is a

\mathrm{pH}

dependent indicator, remains colourless in acidic solution and gives pink colour in basic medium. Reason R: Phenolphthalein is a weak acid. It doesn't dissociate in basic medium. In the light of the above statements, choose the most appropriate answer from the options given below.

A
Both $\mathbf{A}$ and $\mathbf{R}$ are true and $\mathbf{R}$ is the correct explanation of $\mathbf{A}$ .
B
Both $\mathbf{A}$ and $\mathbf{R}$ are true but $\mathbf{R}$ is NOT the correct explanation of $\mathbf{A}$ .
C
A is true but R is false.
D
A is false but R is true.

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