Chemistry, asked by Stannyzen, 6 months ago

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 utsavkumar2108
1

Answer:

b

Explanation:

Answered by Anonymous
4

Answer:

b

The catalyst used in the laboratory preparation of oxygen gas from hydrogen peroxide gas is magnesium oxide.

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