Tiêu đề DISTINCTION BETWEEN PAIRS OF ORGANIC COMPOUNDS.pdf ✅

DISTINCTION BETWEEN PAIRS OF COMPOUNDS UNSATURATION TEST (a) Double/Triple bonded Compounds (C = C)/(C ≡ C) + Br2 in CCl4 (Brown colour) → Colourless compound (b) Double/Triple bonded Compounds + Baeyer's reagent (Pink colour) ⟶ Brown precipitate
• Baeyer's reagent is cold, dilute KMnO4 solution having pink colour. Note : The above test are not given by Benzene. Although it has unsaturation. TEST FOR TERMINAL ALKYNE NATURE OF X-GROUP IN C-X BOND
If X is Cl, precipitate will be white and for Br yellow precipitate will be obtained. DISTINCTION BETWEEN 1 ∘ , 2 ∘ AND 3 ∘ ALCOHOLS Lucas reagent is anhydrous ZnCl2 + conc. HCl. type of alcohols give iodoform test. PHENOL Phenol + ferric chloride (neutral) ⟶ Violet colouration