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

Question

Question

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RRB JE CE 22 Apr 2025 Shift 1 CBT 2 Official Paper

Answer 1

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.