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#1 2017-11-22 15:31:04
- shakeel123
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- Registered: 2017-09-21
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Calcium carbonate contains oxygen.
Armed Forces Police Chemistry Exams Quizzes MCQs Quizzes Elements of Biological Importance
Question:
Calcium carbonate contains oxygen.
Option A):
53%
Option B):
48%
Option C):
89%
Option D):
50%
Correct Answer is Option B):
48%
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2017-11-22 15:31:04
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Re: Calcium carbonate contains oxygen.
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