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Variation in solubility of gases can cause the generation of gases in metal castings.

Variation in solubility of gases can cause the generation of gases in metal castings. Correct Answer True

At different temperatures and phases, the gases may be generated due to the variation in their solubility. And chemical reactions also lead to a generation of gases in metal castings. The gases most generally present are hydrogen and nitrogen, in which removal of hydrogen from the melt is very necessary for better castings.

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