Discussion :: Refractory Technology
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Thoria is an expensive refractory material and is radioactive in nature. Thorium oxide is used in the manufacture of
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A.
segar cones.
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B.
muffles for muffle furnaces.
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C.
insulating bricks.
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D.
crucibles used for melting of high purity metals.
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Answer : Option D
Explanation :
No answer description available for this question.
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