29. Carbon compounds are stable because.
a They combine with one another to form carbon to carbon linkages b. They form covalent bonds
c. They react slowly except with a catalyst
d. They have no lone pairs
30. An organic compound has the formula CisHs2, it is qualified as an?
2. Alkane
b. Alkene
c. Alkyne
d Alcohol
31. The simplest hydrocarbon is
a. CH2
b. CH
C. CH
d. C₂H₂
32. What class of organic compound is C20H38?
a Alkene
b. Alkyne
c. Alcohol
d. Ketone
33. A compound is a colorless gas at 25°C. It is insoluble in water and highly flammable. What kind of compound is it?
a Inorganic
b. Ionic
c. Hydrocarbon
d. Aromatic
34. Which of the following is an organic compound?
a NaCl
b. CS2
c. NaHCO;
d. C3H4
35. Which organic compound do you think you should buy if your burner stove is not working?
a. Kerosene
b. Gasoline
c. Lubricating oil
d Isopropyl alcohc
36. Which of the following is the common use of methane?
a. Disinfectant
b. Fertilizer
c. Artificial ripening agent
d. Fuel
37. Maria Paula wants to preserve a fish for her project in Biology Class. What kind of compound should she use?
a Acetic acid
b. Formaldehyde
c. Methyl alcohol
d. Acetone
38. In ethene, the two carbons are joined by a
a Single bond
b. Double bond
c. Triple bond
d. Ionic bond
39. How many types of carbon are pointed by the arrow?
a. One
b. Two
c. Three
d. One, two and three
40. Which is true about alkanes, alkenes, and alkynes?
a. Alkanes are hydrocarbons that have single bonds between carbon atoms. Alkenes are hydrocarbons that have double bond
between carbon atoms, and alkynes have triple bonds between carbon atoms.
b. Alkanes are hydrocarbons that have single bonds between carbon atoms. Alkenes are hydrocarbons that have double bond
between carbon atoms, and alkynes have triple bonds between carbon atoms.
c Alkanes are hydrocarbons that have single bonds between carbon atoms. Alkenes are hydrocarbons that have single bond
between carbon atoms, and alkynes have triple bonds between carbon atoms.
d Alkanes are hydrocarbons that have single bonds between carbon atoms. Alkenes are hydrocarbons that have double bon
between carbon atoms, and alkynes have double bonds between carbon atoms.​