Multiple choice

Which of the following is a true statement for a pure substance or a compound?

a. The elements in a compound are present in a definite proportion by weight. b. It can be broken down into a simpler type of matter (elements) by chemical means but not by physical means. c. Properties of a compound are an average of the properties of its constituents.

  1. Only a

  2. Only b

  3. Only c

  4. Only a and b

  5. All of these

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This is the correct answer. As both the statements are correct.