pH scale MCQ Questions and Answers for Practice

Master the pH scale with our multiple-choice questions (MCQs). These quizzes are perfect for students and exam aspirants looking to deepen their understanding and test their knowledge.

About pH scale MCQ Questions

The pH scale is a logarithmic scale used to measure the acidity or basicity of a solution. It ranges from 0 to 14, where 7 is neutral, below 7 is acidic, and above 7 is basic. Our MCQs cover key concepts such as pH calculation, buffer solutions, and the properties of acids and bases.

Why Practice pH scale Objective Questions?

Practicing pH scale MCQs offers several benefits. They help reinforce your understanding of fundamental chemistry concepts, prepare you for school and college exams, and enhance your performance in competitive exams and interviews. Regular practice ensures you can quickly and accurately solve problems related to pH and related topics.

Who Should Use These MCQs?

  • Students preparing for school or college exams
  • Competitive exam aspirants
  • Candidates preparing for interviews

pH scale MCQ Questions for Practice

1. A colourless liquid sample was tested with pH paper strip. The colour of the strip changed reddish pink. The sample could be

2. A drop of a liquid sample was put on the pH paper. The colour of the pH paper turned blue. The liquid sample could be of

3. A drop of colourless liquid was placed on blue litmus paper. The litmus paper turned red. The liquid could be

4. A drop of solution X is placed on a strip of a ph paper. A deep red color is produced. The solution X is

5. A few drops of a liquid X were added to distilled water. It was observed that the pH of the water decreased. The liquid X is

6. A fruit juice is tested for its ph value. What could be its possible ph if it turns red

7. A liquid sample turned red litmus paper blue. This indicates that the liquid sample is of

8. A little dilute hydrochloric acid is dropped on a pH paper. The colour of the pH paper turns to

9. A solution with pH = 0 is

10. A student observed that the colour of pH paper changes to green when she dipped it in water. She added a few drops of concentrated hydrochloric acid to the water. The colour of pH paper would turn to

11. A student tested the ph of distilled water and found that the colour of the ph paper changed it to green. He checked the ph again after dissolving common salt in it. the color of the ph paper this time is

12. A student tested the pH of distilled water using paper and observed green colour. After adding a few drops of dilute NaOH solution, the pH was tested again. The colour change now observed would be

13. As the ph increases

14. Bottle A contains oxalic acid and bottle B contains sodium carbonate solution. When pH paper is dipped in each of the solutions, the colour seen in A and B respectively will be

15. If the ph of a solution is 7.5, its nature is

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