Smelting Is

question 18

Multiple Choice

Smelting is

• A) heating an ore, in the presence of oxygen or another substance, in order to purify the ore and obtain the liquid metal.
• B) selectively dissolving a metal in strong acid to separate it from its ore.
• C) the process of cooling an ore to drive off volatile compounds.
• D) heating an ore, in the presence of oxygen or another substance, in order to cause a chemical reaction that drives off newly formed volatile compounds.
• E) forming metal parts using heat and small crystals of metal.

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