Multiple choice

$0.2 g$ of fine animal charcoal is mixed with half litre of acetic acid $(2M)$ solution and shaken for $30$ minutes?

  1. Concentration remains same

  2. Concentration increases

  3. Concentration of the solution decreases

  4. None of above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Animal charcoal is an adsorbent. When added to a solution, it adsorbs solute particles onto its surface, thereby reducing the concentration of the solution.

AI explanation

Fine animal charcoal acts as an adsorbent due to its large surface area. When shaken with the acetic acid solution, the charcoal adsorbs some of the acetic acid molecules onto its surface. This removal of solute from the bulk liquid phase lowers the amount of acetic acid remaining in the solution, meaning the concentration of the solution decreases.

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