Medium Practice — Set 2

Quick Recap — Choosing Tests & Indicators

• Functional groups: confirm with the specific test ($NaHCO_3$, Tollens'/Fehling's, iodoform, $FeCl_3$, carbylamine, bromine water).
• Indicators: strong-strong (any); weak acid + strong base (phenolphthalein); strong acid + weak base (methyl orange).
• Cation confirmatory: flame colours, ammonia complex ($Cu$ blue), $K_4[Fe(CN)_6]$ (Fe blue).
• Redox: $KMnO_4$ self-indicating; iodometry uses starch.