Which of the following is a compound?

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(B) compound is a substance formed when two or more chemical elements are chemically bonded together in a fixed proportion by mass.Water $(H_2O)$ is a

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Water

Vedclass · Answer

(B) compound is a substance formed when two or more chemical elements are chemically bonded together in a fixed proportion by mass.Water $(H_2O)$ is a compound because it consists of hydrogen and oxygen atoms chemically combined in a fixed ratio of $2:1$ by volume or $1:8$ by mass.Air is a mixture of various gases like nitrogen,oxygen,argon,and carbon dioxide.Soda water is a mixture of carbon dioxide gas dissolved in water.Pond water is a mixture containing water,dissolved minerals,organic matter,and microorganisms.Therefore,water is the correct answer.

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