PRE-TEST Directions: Choose the letter of the best answer. Write the chosen letter on a separate sheet of paper.
1. Which of the following have components which can be separated by physical means? A. elements
B. compounds
C. elements
D. mixture
2. The following variety of matter are mixtures EXCEPT.
A. milk
B. rubbing alcohol
C. sucrose
D. 12 K gold ring
3. A form of matter which cannot be separated into different components by ordinary means--------
A. substance
B. mixture
C. molecule
D. Element
4. You were tasked to check if the liquid sample you have is a substance or a mixture. Which among these tests is the best way to do so?
I Color Comparison
II. Taste Comparison
III Boiling point
IV Melting point
A. I,II, III and IV
B. I and III only
C. I, II and III only
D. I, II, and IV only
5. Which of the following describes the properties of pure substance?
A. It can be physically separated into pure substance or elements
B. It cannot be separated into any other kinds of matter.
C. It is impure.
D. It is a combination of two or more pure substances.​