because gasoline is volatile
b, because gasoline is flammable
d. all of the above
21. Emman cut his finger accidentally when he was cutting his nails. He has to apply something on his wou
d. acetone
.
a. formalin
C. water
22. Why is it important to know the properties of common liquid materials?
a. to know the use of liquids
so that it will not be infected. Which compounds should he use?
b. isopropyl alcohol
c. to know how these liquid affect per
b. to know the possible danger from these kind of material
d. all of the above
23. Which hydrocarbon compound has a double bond in the molecule?
a. ethane
b. methane
d. propyne
c. propene
24. To which group of hydrocarbon does the molecule with structure H-C=C-H belong?
a. alkane
b. alkyne
a. disinfectant
d. cleaning agent
b. medicine
d. none of the above
c. alkene
25. Methane is a component of natural gas. What is the common use of methane?
c. fuel
26. Maria wants to preserve a fish for her biology class. What kind of compound should she
d. acetone
C. ethyl alcohol
the animal?
a. acetic acid b. formaldehyde
27. Which of the following unit is used in expressing the amount of substance in term
d. Celsius​