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*🔯 Core Chemistry concepts and related MCQS



☆Ordinary salt ➠ NaCl

✶ baking soda ➠ NaHCO₃

✶ Wash the soda ➠ Na₂CO₃ · 10H₂O

✶ Caustic soda ➠ NaOH

✶ Suhga ➠ Na₂B₄O₇ · 10H₂O.    

✶ alum➠ K₂SO₄ · Al₂ (SO₄) ₃ · 24H₂O

✶ red medicine ➠ KMnO₄

✶ Caustic potash ➠ KOH

✶ Shura ➠ KNO₃

✶ Bleach bleaching ➠ Ca (OCl) · Cl

✶ Lime water ➠ Ca (OH) ₂

✶ Gypsum ➠ CaSO₄ · 2H₂O

✶ Plaster of Paris➠ CaSO₄ · ½H₂O

✶ Choke ➠ CaCO₃

✶ limestone ➠ CaCO₃

✶ marble ➠ CaCO₃

✶ Salon ➠ NH₄Cl

✶ Laughing gas ➠ N₂O

✶ Litharge ➠ PbO

✶ Galena ➠ PbS

✶ red vermilion ➠ Pb₃O₄

✶ white lead ➠2PbCO₃ · Pb (OH) ₂

✶ salt acid ➠ HCl

✶ Shure Acid ➠ HNO₃

✶ Acarus ➠ HNO₃ + HCl (1: 3)

✶ dry ice ➠ CO₂

✶ green clasp ➠ FeSO₄ · 7H₂O

✶ Horn Silver ➠ AgCl

✶ heavy water ➠ D₂O

✶ Producer gas ➠ CO + N₂

✶ vinegar ➠ CH₃COOH

✶ gamaxine ➠ C₆H₆Cl₆

✶ Blue Kassis ➠ CuSO₄ · 5H₂O

✶ alcohol ➠ C₂H₅OH

✶ Manda ➠ C₆H₁₀O₅

✶ Grapes juice ➠ C₆H₁₂O₆

✶ Chinese ➠ C₁₂H₂₂O₁₁

✶ Urea ➠ NH₂CONH₂

✶ benzene ➠ C₆H₆

✶ turpentine oil ➠ C₁₀H₁₆.

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