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AIIMS 2017
Exam
AIIMS
Year
2017
Subject
Chemistry
Chapter
Surface Chemistry

AIIMS 2017 · Chemistry · Surface Chemistry

Assertion : Activity of an enzyme is pH -dependent. Reason : Change...

Assertion : Activity of an enzyme is pH\mathrm{pH}-dependent. Reason : Change in pH\mathrm{pH} affects the solubility of the enzyme in water.

Options

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

Correct answer

B. If both assertion and reason are true but reason is not the correct explanation of assertion.

Step-by-step solution

Activity of enzyme is maximum at pH=7.4\mathrm{pH}=7.4 (physiological pH\mathrm{pH} ). In fact, as pH\mathrm{pH} is increased, the rate rises to a maximum and then falls off.
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