What is mixing an acid with water that results in a decrease in the concentration of ions per unit volume called ?

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RRC Group D Previous Paper 42 (Held On: 16 Oct 2018 Shift 3)
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  1. Concentration
  2. Acidification
  3. Neutralisation
  4. Dilution

Answer (Detailed Solution Below)

Option 4 : Dilution
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Detailed Solution

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The correct answer is Dilution.

  • Mixing an acid with water that results in a decrease in the concentration of ions per unit volume called dilution.

Key Points

  • Dilution is the process of addition of solvent, which decreases the concentration of the solute in the solution.
  • In both dilution and concentration, the amount of solute stays the same. 
    • The solute is a substance that is added to a solvent to form a solution.
  • A solvent is a substance that dissolves the solute particles during the formation of a solution.

Additional Information

  • Concentration is the process of removal of the solvent, which increases the concentration of the solute in the solution.
  • Acidification is a process of controlling the growth of undesirable microorganisms, including pathogens.
  • The mixing of both an acid and a base is called neutralization.
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