What happens to the pH of pure water when a few drops of lemon juice are added?

The correct answer is the pH decreases.

Key Points

• Lemon juice is acidic in nature due to the presence of citric acid.
• When an acidic substance is added to pure water, it increases the concentration of hydrogen ions (H⁺) in the solution.
• The pH scale is a measure of the acidity or basicity of a solution, ranging from 0 to 14.
• A lower pH value indicates a higher acidity, while a higher pH value indicates a more basic solution.
• The pH of pure water is around 7, which is considered neutral.
• When lemon juice is added to water, the pH decreases because the solution becomes more acidic.

 Additional Information

• pH scale
  • The pH scale ranges from 0 to 14.
  • A pH value of 7 is considered neutral.
  • Values below 7 indicate acidity, while values above 7 indicate basicity.
• Citric Acid
  • Citric acid is a weak organic acid commonly found in citrus fruits like lemons.
  • It is widely used in the food and beverage industry as a natural preservative and flavor enhancer.