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What Is Not an Appropriate Method of Isolating the Metals

Question 118

Multiple Choice

What is not an appropriate method of isolating the metals shown?


A) HgS(s) + O2(g) + heat → Hg(g) + SO2(g)
B) ZnO(s) + C(s) + heat → Zn(g) + CO(g)
C) WO3(s) + 3 H2(g) + heat → W(s) + 3 H2O(g)
D) Al2O3(s) + 2 Cr(s) + heat → Cr2O3(s) + 2 Al(l)

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