WorksheetsG9 Q2 S3 Organic Compounds
Total questions: 20
Worksheet time: 36mins
Which of the following statements best describe organic compounds?
Organic compounds are compounds that contain carbon and oxygen only .
Organic compounds are compounds that are produced by living things.
Organic compounds are composed mainly of carbon and hydrogen
Organic compounds are compounds that contain carbon atoms only.
Crude oil is a mixture of a very large number of compounds. Most of the compounds in crude oil are hydrocarbons. What is a hydrocarbon?
a compound that contains only hydrogen and carbon atoms
a compound that contains hydrogen,
carbon and other elements
a compound with a carbon backbone
a compound that is ionic
One molecule of pentane contains 5 carbon atoms. What is the molecular formula for pentane?
C₅H₁₂
C₅H₁₀
C₅H₈
C₅H₁₄
Which alkane is represented by the structural formula shown?
methane
ethane
propane
butane
What happens to the boiling point of hydrocarbon compounds when the number of carbon atoms increases?
increases
decreases
stay the same
varies
If two atoms of carbon were added to pentane, what alkane would you have? Assuming you have enough hydrogens to complete all single bonds?
C4H10
C7H18
C5H12
C7H16
Which of the following has the highest boiling point?
heptane
pentane
nonane
methane
Name the group that has a double bond.
alkanes
alkenes
alkynes
all of the above
Name the structure shown in the image:
Ethene
Ethane
Ethyne
Ethanamine
Choose the correct structure for Propene below:
Name the structure shown in the image:
Propane
Hexane
Heptane
Octane
Emmanuel Juan, a fisher man, went home with some of his catch and told his son to cook the fish. But his son said, “father the stove ran out of fuel already”. Then his father told him to buy some so that they could start cooking the fish. Which organic compound do you think the boy will buy?
kerosene
gasoline
lubricating oil
isopropyl alcohol
Honey is applying something to the ball bearings of the wheels of her bicycle so that friction will be minimized. Which of the following material do you think she is using?
vinegar
kerosene
lubricating oil
isopropyl alcohol
Which are TRUE about the use of ethyl alcohol?
I. medicine
II. fuel
III. disinfectant
IV. Fertilizer
I and II only
II and III only
III and IV only
I and IV only
Marcela told her grandson, Miguel to never play with gasoline. Why do you think she does not allow him to do it?
because gasoline is volatile
because gasoline is flammable
because gasoline is viscous
all of the above
Why is it important to know the properties of common liquid materials?
A. To know the uses of the liquids
B. To know the possible dangers from
these kinds of materials
C. To know how these liquids affect
people
D. All of the above
Why are carbon atoms able to form many organic compounds?
Carbon atoms have strong attraction
to other elements.
Carbon atoms attract electrons from
other atoms.
Carbon atoms can form many types of
bonds with other carbon.
None of the above.
