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NTA Abhyas 2020
Exam
NTA Abhyas
Year
2020
Subject
Chemistry
Chapter
Redox Reactions

NTA Abhyas 2020 · Chemistry · Redox Reactions

The colour change of an indicator HIn in acid base titrations is...

The colour change of an indicator HIn\text{HIn} in acid base titrations is given below
The colour change of an indicator HIn in acid base titrations is given below Which of the following statement is
Which of the following statement is correct?

Options

  1. AIn a strong alkaline solution colour Y will be observed
  2. BIn a strong acidic solution colour Y will be observed
  3. CConcentration of \text{I}{\textn^{-} is higher than that of HIn at the equivalence point
  4. DIn a strong alkaline solution colour X is observed

Correct answer

A. In a strong alkaline solution colour Y will be observed

Step-by-step solution

It is an acidic indicator therefore will remain in ionized form in strong alkaline solution (opposite ion effect) so it will show the colour due to Inaq−I{n}_{aq}^{-} which is colour Y.
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