1.

Water gas is a mixture of ___________

A. CO<sub>2</sub> and O<sub>2</sub>
B. O<sub>2</sub> and H<sub>2</sub>
C. H<sub>2</sub>, N<sub>2</sub> and O<sub>2</sub>
D. CO, N<sub>2</sub> and H<sub>2</sub>
Answer» C. H<sub>2</sub>, N<sub>2</sub> and O<sub>2</sub>


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