MCQ
Oxidation state of oxygen in hydrogen peroxide is
- ✓$-1$
- B$+1$
- C$0$
- D$-2$
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$(A)$ Limestone is used to remove silicate impurity.
$(B)$ Pig iron obtained from blast furnace contains about $4 \%$ carbon.
$(C)$ Coke $(C)$ converts $CO _2$ to $CO$.
$(D)$ Exhaust gases consist of $NO _2$ and $CO$.