Read the questions carefully and choose the letter of your answer:
1. Which of the properties of atoms is the most suitable reference for the kind of bond that will take place between/among them?
a. atomic size c. electronegativity
b. ionization energy d. electron affinity
2. What kind of particle is produced after covalent bonding?
a. atom c. molecule
b. ion d. electron
3. How does ionic bonding take place?
a. Two non-metallic elements of different kinds form strong forces of attraction.
b. Two non-metallic element of the same kind form strong forces of attraction.
c. A non-metallic element like fluorine is attracted to a metallic element like sodium.
d. A metallic element like sodium transfers an electron to a non-metallic element like fluorine.
4. What kind of chemical bond will form between two oxygen atoms?
a. ionic bond c. metallic bond
b. polar covalent bond d. nonpolar covalent bond
5. Which of the following type of bonds will have the highest electrical and thermal conductivity?
a. ionic bond c. metallic bond
b. polar covalent bond d. nonpolar covalent bond
6. Why can metals be hammered without breaking?
a. They are ductile.
b. They are not brittle.
c. They are malleable.
d. Its particles are strong.
7. When does covalent bonding take place?
a. It takes place when atoms share electrons with one another.
b. It takes place when the attraction between atoms is strong.
c. It takes place when atoms collide with one another.
d. It takes place when atoms attain stability.
8. Nitrogen (N) belongs to family 5A and it is diatomic. How many nonpolar covalent bonds will there be in N2molecule?
a. 1 b. 2 c. 3 d. 4
9. Which of the following will have the highest melting temperature?
a. sodium chloride (salt) c. paraffin wax (candle wax)
b. sucrose (table sugar) d. lead wire
10. Which among the following shows that an atom is stable?
a. having 2 valence electrons c. having 4 valence electrons
b. having 6 valence electrons d. having 8 valence electrons
11. Element X belongs to Group 1. Which of the following best describes element X?
a. high electronegativity
b. high ionization energy
c. low electronegativity
d. a non-metallic element
12. What will most likely happen to a non-metallic atom after ionic bonding?
I. It forms a cation
II. It forms an anion
III.It becomes stable
IV. It becomes unstable
a. I & II b. II & III c. III & IV d. I & IV
13. What kind of bond will result when two identical non-metallic atoms combine?
a. ionic bond c. polar covalent bond
b. metallic bond d. nonpolar covalent bond
14. Choose 2 elements that would likely form an ionic bond among the following elements: Li, Si, F, Ne
a. Li and Si b. Si and F c. Ne and Si d. Li and F
15. How is the bond in Br2different from the bond in MgF2?
a. The bond in Br2 is metallic while the bond in MgF2 is covalent.
b. The bond in Br2 is ionic while the bond in MgF2 is covalent.
c. The bond in Br2 is covalent while the bond in MgF2 is ionic.
d. There is no bond difference between the two.
16. Why do atoms react with one another to form chemical bonds?
a. to attain stability c. to form compounds
b. to form molecules d. to produce ions
17. What kind of force is present in ionic bond?
a. repulsive force c. electrostatic force
b. neutral force d. retentive force
18. Which of the following substances when dissolve in water will conduct electricity?
a. glucose c. oil
b. gasoline d. muriatic acid
19. What bond holds the atoms of the elements in Groups 1and 2 of the Periodic Table?
a. nonpolar covalent bond c. polar covalent bond
b. metallic bond d. ionic bond
20.Which of the following sets of samples has metallic bond, covalent bond and ionic bonding in this order?
a. bronze, paraffin wax, and salt
b. alloy, vetsin, and water
c. gold ring, baking soda, and starch
d. coins, salt, and carbon dioxide
Answers Key:
1. c
2. c
3. d
4. d
5. c
6. c
7. a
8. c
9. a
10. d
11. c
12. b
13. d
14. d
15. c
16. a
17. c
18. d
19. b
20. a
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