Which item is used for supporting a crucible during heating?

• A. Beaker
• B. Tongs
• C. Pipe-clay triangle
• D. Watch glass

Answer: (C)

When heating a crucible, you need a stable, heat-distributing support that holds the crucible above the flame so heat can reach it evenly. A pipe-clay triangle provides just that: it sits on a stand or wire gauze and gives a small, steady resting point with three legs. The crucible rests in the triangle’s center, elevated and centered, which protects the crucible from direct flame contact and helps heat spread evenly.

Beakers are vessels for holding liquids, not for supporting a crucible during heating. Tongs are tools for moving hot items, not a resting support. A watch glass is used to cover or evaporate liquids, not to support heating vessels. So the pipe-clay triangle is the right choice for supporting a crucible during heating.