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Topic 4: Chemical bonding

24. Types of substances: Identifying ionic, molecular, and network solid substances:

1. Which formula represents an ionic compound?
1) NaCl 2) N2O 3) HCl 4) H2O

2. Which formula represents an ionic compound? 3) Cl2 4) PCl3
1) FeCl2

2) Fe

3. Which of the following compound is ionic compound? 3) HCl 4) H2O
2) CO2

1) K I

4. The formula of which compound ionic?
1) H2 2) NH4Cl 3) CH4 4) CH3OH
5. Which compound is ionic?
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1) H2SO4 2) CO 3) Na2SO4 4) H2
6. Which formula represents a molecular substance?
1) KCl 2) NaCl 3) LiCl 4) HCl
7. Which substance is a molecular compound?
1) O2 2) Cu 3) CuO 4) FeO

8. Which is a molecular compound?
1) NaC2H3O2 2) NH3 3) C6H12O6 4) NaCl

9. Which is a network solid substance?
1) SiO2 2) NaCl 3) NH3 4) H2O
10. Which substance can exist as a network solid?
1) Carbon dioxide 2) Carbon 3) Zinc 4) Oxygen
11. Which is a metallic substance?
1) He 2) O2 3) Cl 4) Au
12. Which is a metallic substance?

1) Diamond 2) Calcium Oxide 3) Nickel 4) Neon

13. Which two substances are covalent compounds?
1) C6H12O6(s) and KI (s) 3) KI (s) and NaCl (s)
2) C6H12O6 (s) and HCl(g)
4) NaCl(s) and HCl(g)

14. Which compound is ionic? 3) Methane

1) Water
2) Ammonia 4) Lithium bromide

15. Which compound is ionic?
1) Carbon dioxide 3) Nitrogen dioxide
2) Sodium nitrate 4) Hydrogen chloride

16. Which name represents a covalent substance?
1) Magnesium oxide 3) Mercury
2) Aluminum oxide 4) Ammonia

17. Which is a molecular substance?
1) Water
2) Diamond 3) Sodium chloride
4) Copper

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