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Questions and Answers
Which substance can change the color of blue litmus to red?
Which substance can change the color of blue litmus to red?
- Vinegar
- Lemon juice (correct)
- Baking soda solution
- Milk
What would be a suitable remedy for a problem of acidity after overeating?
What would be a suitable remedy for a problem of acidity after overeating?
- Baking soda solution (correct)
- Vinegar
- Orange juice
- Lemon juice
What is the taste of bases?
What is the taste of bases?
- Sour
- Salty
- Bitter (correct)
- Sweet
Which natural indicator can be used to test for acids and bases?
Which natural indicator can be used to test for acids and bases?
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Which synthetic indicator can be used to test for acids and bases?
Which synthetic indicator can be used to test for acids and bases?
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Study Notes
Acids and Bases
- Acidic substances can change the color of blue litmus to red.
- A suitable remedy for acidity after overeating is an antacid, which is a base that neutralizes excess acid in the stomach.
Properties of Acids and Bases
- Bases have a bitter taste.
Indicators for Acids and Bases
- Turmeric can be used as a natural indicator to test for acids and bases.
- Phenolphthalein is a synthetic indicator that can be used to test for acids and bases.
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