First, talk to your lab assistant aunty ji — ours knows exactly which bottles are gathering dust and which ones are actually refilled. My project on colloids happened because she pointed to the FeCl3 and said, "Bas, yeh aur water, bohot kuch ban sakta hai." Choose something from those reliable, basic salts like copper sulphate or alum, not the fancy ones you'll only find in books. Our school shelf is for practicals, not miracles.
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