Podcast
Questions and Answers
Why do substances like curd, lemon juice, orange juice, and vinegar taste sour?
Why do substances like curd, lemon juice, orange juice, and vinegar taste sour?
What is the taste of baking soda as mentioned in the text?
What is the taste of baking soda as mentioned in the text?
Why do substances that feel soapy on touching and taste bitter are categorized as bases?
Why do substances that feel soapy on touching and taste bitter are categorized as bases?
Which indicator is most commonly used to test for acidic or basic substances?
Which indicator is most commonly used to test for acidic or basic substances?
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What is the color of litmus in distilled water?
What is the color of litmus in distilled water?
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In what form is litmus generally available for testing substances?
In what form is litmus generally available for testing substances?
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Study Notes
Acidity and Basicity
- Substances like curd, lemon juice, orange juice, and vinegar taste sour because they contain acids.
- Baking soda tastes bitter and soapy.
Identifying Acids and Bases
- Substances that feel soapy to the touch and taste bitter are categorized as bases.
Testing for Acidity and Basicity
- Litmus is the most commonly used indicator to test for acidic or basic substances.
- Litmus is generally available in the form of litmus paper for testing substances.
- In distilled water, litmus is blue.
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Description
Explore the difference in taste between substances with acids like curd, lemon juice, and vinegar versus baking soda. Learn why sour substances have acids while bitter substances like baking soda do not. Discover the chemical nature of acids and the unique properties of baking soda.
