Question
Discuss the properties of acidic, basic, and neutral substances with 3 examples each.
✓
Answer
(1) Acidic Substances:
→ Property: Acidic substances have a sour taste.They turn blue litmus paper red.They have a pH value less than 7.
Examples:
→ Lemon Juice: Contains citric acid.
→ Vinegar: Contains acetic acid.
→ Hydrochloric Acid: A strong acid found in gastric juice in the stomach.
(2) Basic (Alkaline) Substances:
→ Property: Basic substances often have a bitter taste.They turn red litmus paper blue.They have a soapy or slippery feel.
Examples:
→ Soap Solution: Used for cleaning, it contains bases that help remove dirt.
→ Baking Soda Solution: Used in baking and has alkaline properties.
→ Lime Water: A solution of calcium hydroxide.
(3) Neutral Substances:
→ Property: Neutral substances do not have a distinct taste.They do not change the color of either red or blue litmus paper.They have a pH value of 7.
Examples:
→ Pure Water: Essential for life and has a neutral pH.
→ Sugar Solution: A solution of sugar in water, without acidic or basic properties.
→ Common Salt Solution: A solution of sodium chloride in water.
→ Property: Acidic substances have a sour taste.They turn blue litmus paper red.They have a pH value less than 7.
Examples:
→ Lemon Juice: Contains citric acid.
→ Vinegar: Contains acetic acid.
→ Hydrochloric Acid: A strong acid found in gastric juice in the stomach.
(2) Basic (Alkaline) Substances:
→ Property: Basic substances often have a bitter taste.They turn red litmus paper blue.They have a soapy or slippery feel.
Examples:
→ Soap Solution: Used for cleaning, it contains bases that help remove dirt.
→ Baking Soda Solution: Used in baking and has alkaline properties.
→ Lime Water: A solution of calcium hydroxide.
(3) Neutral Substances:
→ Property: Neutral substances do not have a distinct taste.They do not change the color of either red or blue litmus paper.They have a pH value of 7.
Examples:
→ Pure Water: Essential for life and has a neutral pH.
→ Sugar Solution: A solution of sugar in water, without acidic or basic properties.
→ Common Salt Solution: A solution of sodium chloride in water.
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