Class 10 Exam > Class 10 Questions > A drop of a liquid sample was put on the pH p...
Start Learning for Free
A drop of a liquid sample was put on the pH paper. It was observed that the colour of the pH paper turned blue. The liquid sample is :
- a)lemon juice
- b)sodium bicarbonate solution
- c)distilled water
- d)hydrochloric acid
Correct answer is option 'B'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
A drop of a liquid sample was put on the pH paper. It was observed tha...
Understanding pH Indicators
pH paper is a simple tool used to determine the acidity or basicity of a solution. It contains dyes that change color depending on the pH level of the solution being tested.
Color Change on pH Paper
- **Blue Color Indication**: The blue color on pH paper indicates that the solution is basic (alkaline) with a pH greater than 7.
- **Acidic Solutions**: Solutions like lemon juice (pH around 2), hydrochloric acid (pH around 1), and even distilled water (pH around 7) would not turn the paper blue; they would typically turn it red or show no change, respectively.
Analysis of the Options
- **Lemon Juice**: This is acidic (pH ~2) and would turn the pH paper red.
- **Sodium Bicarbonate Solution (Correct Answer)**: This is a basic solution (pH ~9) which would turn the pH paper blue.
- **Distilled Water**: It has a neutral pH of about 7 and would not change the color of the pH paper significantly.
- **Hydrochloric Acid**: Being highly acidic (pH ~1), this would also turn the pH paper red.
Conclusion
The observation of blue color on the pH paper is a clear indication that the liquid sample is a basic solution. Among the provided options, sodium bicarbonate solution is the only one that aligns with this observation, confirming it as the correct answer.
pH paper is a simple tool used to determine the acidity or basicity of a solution. It contains dyes that change color depending on the pH level of the solution being tested.
Color Change on pH Paper
- **Blue Color Indication**: The blue color on pH paper indicates that the solution is basic (alkaline) with a pH greater than 7.
- **Acidic Solutions**: Solutions like lemon juice (pH around 2), hydrochloric acid (pH around 1), and even distilled water (pH around 7) would not turn the paper blue; they would typically turn it red or show no change, respectively.
Analysis of the Options
- **Lemon Juice**: This is acidic (pH ~2) and would turn the pH paper red.
- **Sodium Bicarbonate Solution (Correct Answer)**: This is a basic solution (pH ~9) which would turn the pH paper blue.
- **Distilled Water**: It has a neutral pH of about 7 and would not change the color of the pH paper significantly.
- **Hydrochloric Acid**: Being highly acidic (pH ~1), this would also turn the pH paper red.
Conclusion
The observation of blue color on the pH paper is a clear indication that the liquid sample is a basic solution. Among the provided options, sodium bicarbonate solution is the only one that aligns with this observation, confirming it as the correct answer.
Attention Class 10 Students!
To make sure you are not studying endlessly, EduRev has designed Class 10 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 10.
|
Explore Courses for Class 10 exam
|
|
Top Courses for Class 10View all
A drop of a liquid sample was put on the pH paper. It was observed that the colour of the pH paper turned blue. The liquid sample is :a)lemon juiceb)sodium bicarbonate solutionc)distilled waterd)hydrochloric acidCorrect answer is option 'B'. Can you explain this answer?
Question Description
A drop of a liquid sample was put on the pH paper. It was observed that the colour of the pH paper turned blue. The liquid sample is :a)lemon juiceb)sodium bicarbonate solutionc)distilled waterd)hydrochloric acidCorrect answer is option 'B'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about A drop of a liquid sample was put on the pH paper. It was observed that the colour of the pH paper turned blue. The liquid sample is :a)lemon juiceb)sodium bicarbonate solutionc)distilled waterd)hydrochloric acidCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A drop of a liquid sample was put on the pH paper. It was observed that the colour of the pH paper turned blue. The liquid sample is :a)lemon juiceb)sodium bicarbonate solutionc)distilled waterd)hydrochloric acidCorrect answer is option 'B'. Can you explain this answer?.
A drop of a liquid sample was put on the pH paper. It was observed that the colour of the pH paper turned blue. The liquid sample is :a)lemon juiceb)sodium bicarbonate solutionc)distilled waterd)hydrochloric acidCorrect answer is option 'B'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about A drop of a liquid sample was put on the pH paper. It was observed that the colour of the pH paper turned blue. The liquid sample is :a)lemon juiceb)sodium bicarbonate solutionc)distilled waterd)hydrochloric acidCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A drop of a liquid sample was put on the pH paper. It was observed that the colour of the pH paper turned blue. The liquid sample is :a)lemon juiceb)sodium bicarbonate solutionc)distilled waterd)hydrochloric acidCorrect answer is option 'B'. Can you explain this answer?.
Solutions for A drop of a liquid sample was put on the pH paper. It was observed that the colour of the pH paper turned blue. The liquid sample is :a)lemon juiceb)sodium bicarbonate solutionc)distilled waterd)hydrochloric acidCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 10.
Download more important topics, notes, lectures and mock test series for Class 10 Exam by signing up for free.
Here you can find the meaning of A drop of a liquid sample was put on the pH paper. It was observed that the colour of the pH paper turned blue. The liquid sample is :a)lemon juiceb)sodium bicarbonate solutionc)distilled waterd)hydrochloric acidCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
A drop of a liquid sample was put on the pH paper. It was observed that the colour of the pH paper turned blue. The liquid sample is :a)lemon juiceb)sodium bicarbonate solutionc)distilled waterd)hydrochloric acidCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for A drop of a liquid sample was put on the pH paper. It was observed that the colour of the pH paper turned blue. The liquid sample is :a)lemon juiceb)sodium bicarbonate solutionc)distilled waterd)hydrochloric acidCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of A drop of a liquid sample was put on the pH paper. It was observed that the colour of the pH paper turned blue. The liquid sample is :a)lemon juiceb)sodium bicarbonate solutionc)distilled waterd)hydrochloric acidCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice A drop of a liquid sample was put on the pH paper. It was observed that the colour of the pH paper turned blue. The liquid sample is :a)lemon juiceb)sodium bicarbonate solutionc)distilled waterd)hydrochloric acidCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Class 10 tests.
|
|
Explore Courses for Class 10 exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup