Which of the following substances is not a compound? *
Water
Oxygen
Common salt
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Which of the following substances is not a compound? *
Water
Oxygen
Common salt
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Answer:
Oxygen.
Explanation:
What is a compound?
A compound contains atoms of different elements chemically combined together in a fixed ratio.
Difference between a Element and compound?
Element is a substance which has only one kind of atoms. Compound is a substance where two or more elements combine chemically.
Water:-Water is a compound of Hydrogen and oxygen H₂0 where 2 atoms of hydrogen and 1 atom of oxygen.
Common salt:-Common salt is a combination of sodium and chlorine Nacl or sodium chloride.
Oxygen:-Oxygen is a element O²