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UPSC Prelims 1990Question 52Science & Technology

Assertion (A): Activated charcoal is used for decolourising sugar solution. Reason (R): Activated charcoal absorbs the impurities on its surface.

Options

  1. (a)Both A and R are true and R is the correct explanation of A
  2. (b)Both A and R are true but R is nota correct explanation of A
  3. (c)A is true but R is false
  4. (d)A is false but R is true

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