6. Which of the following properties of substance is the amount of energy required to stretch the surface area of liquids?
A Surface tension
B. Boiling point
C. Viscosity
D. Boiling point

7. What increases the boiling point of a compound?
A Lower intermolecular force
C. Higher intermolecular force
B: Lower atomic mass

8. What increases the vapor pressure of a compound?


A. Higher intermolecular force
B. Higher molecular weight
C. Lower intermolecular force
D. Higher boiling point


9. If a liquid has high viscosity,

A. Strong resistance to flow
C. Weak resistance to flow
B. Flow easily
D. No force of attraction among molecules

10. Surface tension is the property of water in which

A. Water molecules at the surface tend to stick together
B. Water tends flow easily
C. Water spill easily
D. water is the universal solvent

11. Which of the following is NOT a carbohydrate?

A. Glucose
B. Sucrose
C. Amino acid
D. Fructose

12. Which biomolecular group plays an essential role storage, transfer, and expresssion of

genetic information?

A. Protiens
B. Carbohydrates
C. Fats
D, Nucleic Acid

13. Waxes,oils and fats are examples of

A Carbohydrates
B. Lipids
C. Protiens
D. Nucleic acid

14. Which of the following organic compounds is the main source of energy of living things

a.carbohydrate
b.lipids
c.nucliec acid
d.protiens

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