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NEETChemistryIonic Equilibrium

In what way do these water-soluble organic compounds, as weak acids, exhibit different colors?

Options

  1. AThey change color based on temperature.
  2. BThey change color based on pressure.
  3. CThey change color in their acid and conjugate base forms.
  4. DThey have a fixed color and do not change.

Correct answer

C. They change color in their acid and conjugate base forms.

Step-by-step solution

These weak acids exhibit different colors in their acid (HIn) and conjugate base (In–) forms.

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