1. Which of the following is an ionic compound?
A. CO2 B. FeO C. NH3 D. N2O
2. Which of the following is a covalent compound?
A. AlN B. CO C. K2O D. Li2O
3. Which of the following is NOT TRUE about the physical property of an ionic compound?
A. It is soft and brittle.
C. It has a high boiling point.
B. It is hard but brittle.
D. It has a high melting point.
4. Which of the following is NOT TRUE about the physical property of a covalent compound?
A. It is soft and brittle.
C. It has a low boiling point.
B. It is hard but brittle.
D. It has a low melting point.
5. Which of the following compound can conduct electricity when dissolved in water?
A. chemical B. covalent C. ionic D. metallic
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Answer:
1.b
2.c
3.d
4.a_c
5.d
Explanation:
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