🌟 Chemistry Notes: Acids, Bases, and Salts (Easy Revision)

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 πŸ”· What are Acids?

✅ Acids are substances that taste sour and turn blue litmus red.

✔️ Examples:

  • Hydrochloric acid (HCl) → in stomach

  • Sulphuric acid (H₂SO₄) → in car batteries

  • Citric acid → in lemons

πŸ”· What are Bases?

✅ Bases are substances that taste bitter, feel soapy, and turn red litmus blue.

✔️ Examples:

  • Sodium hydroxide (NaOH) → in soap

  • Ammonium hydroxide (NH₄OH) → in window cleaners

  • Calcium hydroxide (Ca(OH)₂) → lime water

πŸ”· What are Salts?

✅ When an acid reacts with a base, it forms salt and water. This is called neutralisation.

✔️ Example:
HCl + NaOH → NaCl (table salt) + H₂O

πŸ”· Important Properties

AcidsBases
Litmus TestBlue to RedRed to Blue
TasteSourBitter
Feel–Soapy
pHLess than 7More than 7

πŸ”· Common Uses

✅ Acids:

  • Citric acid → used in food and drinks

  • Hydrochloric acid → cleaning metal surfaces

✅ Bases:

  • Sodium hydroxide → soap making

  • Ammonia → household cleaning

✅ Salts:

  • Sodium chloride → table salt

  • Baking soda (Sodium bicarbonate) → cooking

πŸ”· Easy Tip

πŸ“Œ Acids: Sour + Turns blue litmus red
πŸ“Œ Bases: Bitter & Soapy + Turns red litmus blue
πŸ“Œ Salts: Made by Acid + Base reaction

✅ Final Words

Revise these basic concepts, examples, and reactions for MCQs, short answers, and definitions. Practice litmus test questions as they often come in exams.

πŸ”– Hashtags

#ChemistryNotes #AcidsBasesSalts #EasyChemistry #ExamPreparation #ScienceStudy

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