Directions: Choose the letter of the correct answer. Write the CAPITAL letter of your choice on the space provided before each number.
_1. Which of the following substances is an element?

A.Blood C. Iron

B.Fruit salad D. Mayonnaise

_2. Which of the following DOES NOT belong to the group?

A.Milk of magnesia C. Table sugar
TEST
B.Oxygen D. Water

_3. Which of the following is NOT TRUE for both elements and compounds?

A.They are homogeneous.

B.They are the simplest form of matter.

C.They are commonly found free in nature.

D.They can be broken down into simpler substances.


_4. What elements can be taken when electrolysis is done in water?

A.Hydrogen C. both A and B

B.Water D. Neither A nor B

_5. How many different elements are present in C12H22O11?

A.3 C. 4

B.12 D. 44

_6. Which of the following chemical formulas represent a compound?

A.O2 C. H2

B.C3 D. CH3CHO

_7. Which DOES NOT belong to the group?

A. Americium C. Berkelium

B. Germanium D. Indium

_8. Who was the first scientist to use chemical symbol to represent an element?

A. Albert Einstein C. Aristotle

B. Jons Jacob Berzelius D. Theodore Schwann

_9. What is a gold?

A. Compound C. Mixture

B. Element D. Solution

_10. Which statement correctly describes an element?

A. It can be separated

B. It is made out from a mixture.

C. It is pure, made of only one thing

D. The melting and boiling point may differ all throughout.




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