Mnemonic 1 — Lucas Test "3-2-1 Countdown"

"Tertiary is Turbo-fast, Secondary is Slow, Primary says Pass"

• 3° → Immediate (< 5 min) — Turbo
• 2° → 5-20 minutes — Slow
• 1° → No reaction at RT — Pass (skip)

Mnemonic 2 — PCC vs $KMnO_{4}$ "P = Partial, K = Kaput"

• PCC = Partial oxidation (stops at aldehyde)
• K$MnO_{4}$ = Kaput (complete oxidation to carboxylic acid)

Mnemonic 3 — Named Reactions "K for Carboxyl, R for formaldehyde"

• Kolbe → adds $CO_{2}$ group (Car-boxyl) → salicylic acid
• Reimer-Tiemann → adds CHO group (foRmyl) via :$CCl_{2}$ → salicylaldehyde
• Both give the product at the ortho position

Mnemonic 4 — Williamson Synthesis "1° or NO"

• 1° halide = YES (SN2 proceeds cleanly)
• 2° halide = Maybe (some elimination)
• 3° halide = NO (E2 elimination dominates — gives alkene, not ether)

Mnemonic 5 — Phenol Acidity "EWG Makes Acidic, EDG Makes Basic"

• Electron-Withdrawing Groups (-$NO_{2}$, -Cl) → more acidic (lower pKa)
• Electron-Donating Groups (-$CH_{3}$, -O$CH_{3}$) → less acidic (higher pKa)

Mnemonic 6 — Reducing Agents "$NaBH_{4}$ is Naïve, $LiAlH_{4}$ is Lion"

• $NaBH_{4}$ (Naïve) — gentle, only reduces aldehydes and ketones
• $LiAlH_{4}$ (Lion) — aggressive, reduces everything including carboxylic acids, esters, and amides