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Which of the following values represents the pH of an acidic solution?
1. 9
2. 12
3. 8
4. 2

1 Answer

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Correct Answer - Option 4 : 2

The correct answer is 2.

  • The pH of the acidic solution is 2.

  • It is a measure of acidity or the basicity of a solution.
  • It is defined as the negative logarithm of the concentration in (mol/L) of hydrogen ions that it contains.
  • It is seven for a neutral solution, greater than seven for the basic solution, and less than seven for the acidic solution.
  • The pH scale ranges from 0 (strongly acidic) to 14 (strongly basic or alkaline)
  • A pH of 7.0 in the middle of this scale is neutral.

  • The pH scale, otherwise known as the acid-base scale.
  • The pH of blood tells it is acidic.
    • Changes to blood pH can signal underlying medical issues.
  • Litmus is a water-soluble mixture of different dyes extracted from lichens and it is one of the oldest forms of pH indicator.
  • The main use of litmus is to test whether a solution is acidic or basic.
  • Light Blue litmus paper turns red under acidic conditions and red litmus paper turns blue under basic or alkaline conditions.

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