Class 10 Science NCERT BOOK chapter 2 Notes – Acids, Bases, and Salts
🧪 Acids, Bases and Salts – Class 10 Notes ✅ Definition: Acids: Substances which taste sour and turn blue litmus red . (e.g. HCl, H₂SO₄) Bases: Substances which taste bitter and turn red litmus blue . (e.g. NaOH, Ca(OH)₂) Salts: Compounds formed from the neutralization reaction between acid and base. 🌈 Indicators: Used to detect acidic or basic nature of a solution. Indicator In Acid In Base Litmus Blue → Red Red → Blue Methyl Orange Orange → Red Orange → Yellow Phenolphthalein Colourless Pink 🔄 Neutralization Reaction: mathematica Copy Edit Acid + Base → Salt + Water HCl + NaOH → NaCl + H ₂ O 🧪 Chemical Properties of Acids: Acid + Metal → Salt + H₂ gas Example: Zn + H₂SO₄ → ZnSO₄ + H₂↑ Acid + Base → Salt + Water Acid + Metal Carbonate → Salt + H₂O + CO₂ Example: CaCO₃ + HCl → CaCl₂ + H₂O + CO₂↑ 🧪 Chemical Properties of Bases: Base + Acid → Salt + Water Base + Non-metal Oxide → Salt + Water Example: Ca(OH)₂ + CO₂ →...