Equal to 7
More than 7
Less than 7
Nothing can be predicted
Answer is Right!
Answer is Wrong!
The correct answer is C. Less than 7.
The pH scale is a measure of how acidic or basic a substance is. A pH of 7 is neutral. A pH below 7 is acidic, and a pH above 7 is basic. Lemon juice is acidic, so its pH is expected to be less than 7.
Option A is incorrect because the pH of lemon juice is not equal to 7. Option B is incorrect because the pH of lemon juice is not more than 7. Option D is incorrect because it is possible to predict the pH of lemon juice based on its acidity.