MCQ
$ ? + \mathrm{O}_2 \rightarrow 2 \mathrm{~K}_2 \mathrm{O}$
- A$K$
- B$K_2$
- C$2K$
- ✓$4K$
✓
Answer
Correct option: D.
$4K$
$ ? +\mathrm{O}_2 \rightarrow 2 \mathrm{~K}_2 \mathrm{O}$
Since in the product side there are $4$ atoms of potassium. so, to have a balanced equation, reactant side should also have $4K.$
Since in the product side there are $4$ atoms of potassium. so, to have a balanced equation, reactant side should also have $4K.$
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