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3. Which represents a compound?(1) Ca(2) Cr(3) CO(4) Co

Answer»

Answer:3)CO

Explanation:Carbon monoxide is a compund whichconsists of carbon and oxygen. The formula isCO(C is carbon and O is oxygen). Each molecule consists of one carbon and one oxygen joined together. It is not anelement, but is made of two elements, carbon and oxygen, joined together

CO represents a compound and others are element

CO is the correct answer of the given question

CO is answer of the question



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