Acid Base and Salts Class 10 | NCERT Chapter 2 | One Shot | CBSE
LearnoHub - Class 9,10・3 minutes read
Eating Samosa Kachori causes acidity; antacid helps neutralize excess stomach acid. Acids and bases have various uses and behaviors, affecting our daily lives and health.
Insights
- Antacids are effective in alleviating acidity caused by overconsumption of foods like Samosa Kachori by neutralizing excess stomach acid.
- Understanding the properties of acids and bases, including their reactions, indicators like litmus paper or red cabbage, and the importance of maintaining pH balance, is crucial for comprehending various chemical processes and their impact on health and the environment.
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Recent questions
What causes acidity in the stomach?
Eating too much Samosa Kachori causes acidity in the stomach.
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Summary
00:00
Understanding Acids, Bases, and Neutralization Reactions
- Eating too much Samosa Kachori causes acidity in the stomach.
- Antacid helps in curing acidity by neutralizing the excess acid in the stomach.
- Acids are present in many things around us, including fruits like oranges which contain citric acid.
- Hydrochloric acid in the stomach aids in the digestion process.
- Different definitions of acids have evolved over the years, with hydrogen being a key component in identifying acids.
- Strong acids completely dissociate in a solution, while weak acids do not dissociate fully.
- Dilute acids have low concentrations in a solution, while concentrated acids have high concentrations.
- Bases, like sodium bicarbonate in baking soda, help neutralize acids and are found in various everyday items.
- Neutralization reactions occur when acids and bases react, resulting in the formation of salts like sodium chloride.
- Bases, such as potassium permanganate, have various uses including treating infections and preserving food.
19:33
Understanding Acid-Base Indicators and Reactions
- Acids and bases behave differently with certain substances, known as acid-base indicators.
- Indicators like litmus paper change color in acidic or basic solutions.
- Red cabbage is another indicator, turning red in acid, green in base, and blue in neutral solutions.
- Turmeric is a good indicator, remaining yellow in neutral solutions and turning red in bases.
- Acid-base indicators like Spain and Holland change color in acid and base solutions.
- Water can act as both an acid and a base, accepting or donating protons as needed.
- Distilled water is neutral, while tap water can show basic behavior due to metal ions.
- Acid-base reactions with metal carbonates and bicarbonates produce specific products like sodium hydrogen carbonate.
- Metal oxides can react with acids to form salts and water, showing acidic or basic behavior.
- Diluting acids in water should be done carefully to prevent excessive heat generation and splashing.
38:06
pH: Impact on Health and Environment
- pH is a measure of acidity or alkalinity, calculated based on the concentration of hydrogen ions in a substance, with a range from 0 to 14.
- The human body operates within a pH range of 7.27 to 9.52, with deviations leading to health issues like dysentery.
- Acid rain, with a pH that can harm living organisms, showcases the impact of pH levels on the environment.
- Tooth decay occurs when the pH in the mouth drops below 5.5, caused by bacteria breaking down food particles and producing acid.
- Brushing teeth with toothpaste neutralizes the acidic environment in the mouth, preventing tooth decay.
- Family of salts includes neutral, double, and mixed salts, formed through various reactions like neutralization and combination of substances.
- Sodium hydroxide, bleaching powder, and baking soda are essential products derived from specific reactions involving different substances.
- Bleaching powder serves as a disinfectant, oxidizing agent, and textile greaser, with applications in water purification and industrial processes.
- Baking soda, also known as sodium bicarbonate, is a versatile ingredient used in baking, fire extinguishers, and various household applications.
