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Topic 4: Chemical bonding
26. Types of substances: Determining formula of compounds based on given properties
1. Which substance, when dissolved in water, forms a solution that conducts an electrical current?
1) C2H5OH
4) KCl
3) N2
2) C6H12O6
2. Which substance at STP conducts electricity because the substance contains mobile electrons?
2) S
3) Mg
4) H2O
1) NaCl
3. Based on bond type, which compound has the highest melting point?
1) CH3OH 2) C6H14 3) CuCl 4) CCl4
4. Which of the following substances is the best conductor of electricity?
1) H2O (g) 2) H2O (s) 3) NaCl (s) 4) NaCl (l)
5. Which substance is a conductor of electricity in the liquid phase but NOT in the solid phase?
1) Br2 2) HBr 3) Na 4) NaCl
Teacher Preview Copy
6. Which of the following solids has the highest melting point? 3) SO2(s) 4) CO2(s)
1) H2O(s)
2) Na2O(s)
7. A solid substance was tested in the laboratory. The test results are listed below.
.Dissolves in water . Is an electrolyte . Melts at a high temperature
Based on these results, the solid substance could be
1) Cu 2) CuBr2 3) C 4) C6H12O6
8. A solid substance is found to have the following properties:
. Non electrolytes . Low solubility in water . Low melting point
Based on the above properties, the solid substance could be
2) Ag (s)
3) NaCl(s)
1) I2 (s) Teacher Preview Copy 4) SiO2(s)
9. A solid substance has a high melting point and is a good conductor of electricity as a solid and as a
liquid. This substance could be 2) Carbon dioxide 3) Silver 4) Carbon
1) Calcium chloride
10. A certain substance is a poor conductor of electricity and has a high melting point. The substance is
most likely
1) CO2(s) 2) SiO2(s) 3) H2O(s) 4) C6H12O6(s)
11. Which property is true of copper? 3) It has a high melting point
1) It has a low melting point
2) It is a non conductor 4) It is soluble in water
12. Which is true of the compound NaCl(s) ?
1) It is a good electrolyte with high melting point
2) It is a poor electrolyte with high melting point
3) It is a good electrolyte with low melting point
4) It is a poor electrolyte with low melting point
13. Which set of properties best describes NH4Cl(s)?
1) Low solubility in water and poor conductor of electricity as aqueous
2) Low solubility in water and good conductor of electricity as aqueous
3) High solubility in water and poor conductor of electricity as aqueous
4) High solubility in water and good conductor of electricity as aqueous
14. The compound C12H22H11 is best described as
1) A molecular solid with low melting point and low electrical conductivity as aqueous
2) A molecular solid with high melting point and high electrical conductivity as aqueous
3) An ionic solid with low melting point and low electrical conductivity as aqueous
4) An ionic solid with high melting point and high electrical conductivity as aqueous
202 Copyright © 2010 E3 Scholastic Publishing. All Rights Reserved. Survivingchem.com
Topic 4: Chemical bonding
26. Types of substances: Determining formula of compounds based on given properties
1. Which substance, when dissolved in water, forms a solution that conducts an electrical current?
1) C2H5OH
4) KCl
3) N2
2) C6H12O6
2. Which substance at STP conducts electricity because the substance contains mobile electrons?
2) S
3) Mg
4) H2O
1) NaCl
3. Based on bond type, which compound has the highest melting point?
1) CH3OH 2) C6H14 3) CuCl 4) CCl4
4. Which of the following substances is the best conductor of electricity?
1) H2O (g) 2) H2O (s) 3) NaCl (s) 4) NaCl (l)
5. Which substance is a conductor of electricity in the liquid phase but NOT in the solid phase?
1) Br2 2) HBr 3) Na 4) NaCl
Teacher Preview Copy
6. Which of the following solids has the highest melting point? 3) SO2(s) 4) CO2(s)
1) H2O(s)
2) Na2O(s)
7. A solid substance was tested in the laboratory. The test results are listed below.
.Dissolves in water . Is an electrolyte . Melts at a high temperature
Based on these results, the solid substance could be
1) Cu 2) CuBr2 3) C 4) C6H12O6
8. A solid substance is found to have the following properties:
. Non electrolytes . Low solubility in water . Low melting point
Based on the above properties, the solid substance could be
2) Ag (s)
3) NaCl(s)
1) I2 (s) Teacher Preview Copy 4) SiO2(s)
9. A solid substance has a high melting point and is a good conductor of electricity as a solid and as a
liquid. This substance could be 2) Carbon dioxide 3) Silver 4) Carbon
1) Calcium chloride
10. A certain substance is a poor conductor of electricity and has a high melting point. The substance is
most likely
1) CO2(s) 2) SiO2(s) 3) H2O(s) 4) C6H12O6(s)
11. Which property is true of copper? 3) It has a high melting point
1) It has a low melting point
2) It is a non conductor 4) It is soluble in water
12. Which is true of the compound NaCl(s) ?
1) It is a good electrolyte with high melting point
2) It is a poor electrolyte with high melting point
3) It is a good electrolyte with low melting point
4) It is a poor electrolyte with low melting point
13. Which set of properties best describes NH4Cl(s)?
1) Low solubility in water and poor conductor of electricity as aqueous
2) Low solubility in water and good conductor of electricity as aqueous
3) High solubility in water and poor conductor of electricity as aqueous
4) High solubility in water and good conductor of electricity as aqueous
14. The compound C12H22H11 is best described as
1) A molecular solid with low melting point and low electrical conductivity as aqueous
2) A molecular solid with high melting point and high electrical conductivity as aqueous
3) An ionic solid with low melting point and low electrical conductivity as aqueous
4) An ionic solid with high melting point and high electrical conductivity as aqueous
202 Copyright © 2010 E3 Scholastic Publishing. All Rights Reserved. Survivingchem.com
