MCQ
Water gas is a mixture of ______.
- A$CO _2+ H _2$
- B$O _2+ H _2$
- ✓$CO + H _2$
- D$CO + H _2+ H _2 O$
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i. $\ce{PO^{3-}_4}$
ii. $\ce{SO^{2-}_4}$
iii. $\ce{[Fe(CN)6]^{4-}}$
iv. $\ce{NO^-_3}$