Multiple choice

Which of the following is not a property of a compound?

  1. It is a pure substance.

  2. It is mixed in any proportion by mass.

  3. It cannot be separated into its constituents by physical means.

  4. It is composed of two or more elements.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A compound is a substance formed when two or more elements are chemically bonded together. Two types of chemical bonds common in compounds are covalent bonds and ionic bonds. The elements in any compound are always present in fixed ratios.

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