Which of the following compounds is used as a catalyst in the laboratory preparation of oxygen?
a)Potassium permanganate
b)Manganese dioxide
c)Hydrogen peroxide
D0Potassium chlorate
Answers
Answered by
1
Answer:
b
Explanation:
Answered by
4
Answer:
b
The catalyst used in the laboratory preparation of oxygen gas from hydrogen peroxide gas is magnesium oxide.
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