NEET Exam > NEET Videos > Chemistry Class 11 > Short Tricks: pH
Short Tricks: pH Video Lecture | Chemistry Class 11 - NEET
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FAQs on Short Tricks: pH Video Lecture - Chemistry Class 11 - NEET
| 1. What is pH and why is it important in chemistry? |  |
Ans. pH is a measure of the acidity or alkalinity of a solution. It is important in chemistry because it helps determine the chemical properties and reactions of substances. pH values range from 0 to 14, with values below 7 indicating acidity, 7 being neutral, and values above 7 indicating alkalinity.
| 2. How is pH measured and what are the commonly used indicators? | |
Ans. pH is measured using a pH scale, which involves using a pH meter or pH paper. pH meters measure the concentration of hydrogen ions in a solution, while pH paper changes color based on the acidity or alkalinity of the solution. Some commonly used indicators are litmus paper, phenolphthalein, and bromothymol blue.
| 3. How does pH affect living organisms and the environment? | |
Ans. pH plays a crucial role in the survival and functioning of living organisms. For example, the pH of blood must be maintained within a narrow range for proper functioning of bodily processes. In the environment, pH affects the health of ecosystems and aquatic life. Changes in pH can disrupt the balance of organisms and lead to harmful effects on biodiversity.
| 4. What are the potential sources of pH changes in natural water bodies? | |
Ans. Natural water bodies can experience changes in pH due to various sources. Some potential sources include acid rain, industrial pollution, agricultural runoff, and natural geological processes. These sources can introduce acidic or alkaline substances into water, altering its pH and potentially harming aquatic life.
| 5. How can pH be regulated or controlled in different applications? | |
Ans. pH can be regulated or controlled in different applications through various methods. In water treatment, pH can be adjusted using chemicals such as lime or sulfuric acid. In agriculture, pH levels in soil can be modified by adding substances like lime or sulfur. In laboratories, pH can be controlled using buffers, which help maintain a stable pH level in solutions.
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Nov 16, 2024 Last updated |
Video Description: Short Tricks: pH for NEET 2024 is part of Chemistry Class 11 preparation.
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