Assessment
Directions: Encircle the letter of the correct answer.
1. Which of the following type of bonds will have the highest electrical and
thermal conductivity?
A.
ionic bond
C. polar covalent bond
B. metallic bond
2. Which of the following will have the highest melting temperature?
D. non-polar covalent bond
A. lead wire
C. sucrose (table sugar)
B.
sodium chloride (salt)
D. paraffin wax (candle wax)
3. Why do atoms react with one another to form chemical bonds?
A. to produce ions
C. to form molecules
B. to attain stability
D. to form compounds
4. Which of the following substances when dissolved in water will conduct
electricity?
A. oil
C. gasoline
B. glucose
D. monosodium glutamate
5. Which of the following set of samples has a metallic bond, covalent bond,
and ionic bonding respectively?
A. alloy, vetsin, and water
bronze, paraffin wax, and salt
C. coins, salt, and carbon dioxide
D. gold ring, baking soda, and starch
B.