Ah, mone, they always ask for the carbonate test—adding dilute acid to see if it fizzes, then passing the gas into limewater. For chlorides, the silver nitrate test gives that lovely white precipitate, soluble in ammonia. But I tell my daughter, the viva is more about *why* the precipitate forms, not just the colour. When I tutor her, I see how they forget the reasoning behind the confirmatory step, just like my old students used to. So I make her write the ionic equations first, even if the syllabus doesn't strictly ask—it’s like knowing why your guava plant fruits, not just that it does.
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