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#1 2017-01-31 06:51:57
________ is used as catalyst in the preparation of Oxygen.
11th Class Quizzes 11th Class Chemistry
Question:
________ is used as catalyst in the preparation of Oxygen.
Option A):
MnO₂
Option B):
CaCO₃
Option C):
NH₄Cl
Correct Answer is Option A):
MnO₂
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2017-01-31 06:51:57
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Re: ________ is used as catalyst in the preparation of Oxygen.
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