What is the standard value of pH range of acids?

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  1. 0-7
  2. 7-14
  3. 2-7
  4. 7-15

Answer (Detailed Solution Below)

Option 1 : 0-7
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The correct answer is 0-7

Explanation:

  • The pH scale is a measure of the acidity or basicity of an aqueous solution.
  • The scale ranges from 0 to 14, where
    • 7 is neutral,
    • Values less than 7 indicate acidity
    • Values greater than 7 indicate a basic solution.
  • Acids are substances that can donate a proton (H+) and have a pH value less than 7.
  • The standard pH range for acids is from 0 to 7. This is because acids are characterized by their ability to increase the concentration of hydrogen ions (H+) in a solution, resulting in a lower pH.

ph-scale orig

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