Thoria is an expensive refractory material and is radioactive in nature. Thorium oxide is used in the manufacture of

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Thoria is an expensive refractory material and is radioactive in nature. Thorium oxide is used in the manufacture of Answer: Crucibles used for melting of high purity metals.crucibles used for melting of high purity metals.

Question context

This question is part of ⚗️ Chemical Engineering within the broader 🛠️ Engineering Essentials subject and appears in the DemoPaper-Pakistan preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.