b. hydrocarbon
An organic compound consisting only of carbon and hydrogen is called a (an)?
a. hydrogen carbide
b. hydrocarbon
c. organic compound
d. hydrocarbide
c. Covalent
Carbon-to-carbon bonds are
a. Ionic
b. Polar covalent
c. Covalent
d. Metalli
d. alkalines
All of the following are hydrocarbon groups except...
a. alkanes
b. alkenes
c. alkynes
d. alkalines
b. ethyl
In the group -C2H5 is called...
a. methyl
b. ethyl
c. dimethyl
d. propyl
c. isomers
Compounds with the same molecular formulas but with different structures are called
a. Isotopes
b. Allotropes
c. Isomers
d. Polymer
b. alkenes
Hydrocarbons with double bonds are the
a. Alkanes
b. Alkenes
c. Alkynes
d. Alkine
c. Alkynes
A hydrocarbon with a carbon-to-carbon triple bond is an
a. Alkane
b. Alkene
c. Alkynes
d. Alkaline
a. Gases
Hydrocarbons that have one to four carbon atoms are
a. Gases
b. Liquids
c. Solids
d. Semisolids
c. cracking
The process where large hydrocarbons are converted into smaller ones is called
a. Snapping
b. Distillation
c. Cracking
d. Fractionation
b. functional group
The atom or group of atoms in an organic molecule that is the site of a chemical reaction
is called the
a. Reaction site group
b. Functional group
c. Addition site
d. Reactant group
d. Alcohols
The hydroxyl, -OH, functional group is found in
a. Ketone
b. Alkanes
c. Aldehydes
d. Alcohols
c. acetic acid
The oxidation of ethanol, C2H5OH, produces
a. acetone
b. formaldehyde
c. acetic acid
d. formic acid
c. contains carbon, whether it was formed by a living thing or not
An organic compound is a compound that
a. Contains carbon and was formed by a living organism
b. Is a natural compound
c. Contains carbon, whether it was formed by a living thing or not
d. Was formed by a plant
d. Carbon atoms can combine with up to four other atoms, including other carbon
atoms
There are millions of organic compounds but only thousands of inorganic compounds
because
a. Organic compounds were formed by living things
b. There is more carbon on earth's surface than any other element
c. Atoms of elements other than carbon never comb
d. all of the above are correct
You know for sure that the compound need decane has
a. more than ten isomers
b. ten carbon atoms in each molecule
c. only single bonds
d. all of the above are correct
c. ten
An alkane with four carbon atoms would have how many hydrogen atoms in each molecule?
a. four
b. eight
c. ten
d. sixteen
a. molecular formula with different structures
Isomers are compounds with the same
a. molecular formula with different structures
b. molecule formula with different atomic masses
c. atoms but different molecular formulas
d. structures but different formulas
d. Different physical and chemical properties
Isomers have
a. The same chemical and physical properties
b. The same chemical but different physical properties
c. The same physical but different chemical properties
d. Different physical and chemical properties
d. octane
The organic compound 2, 2, 4- trimethylpentane is an isomer of
a. propane
b. pentane
c. heptane
d. octane
a. alkane
Which of the following would not occur as an unsaturated hydrocarbon?
a. alkane
b. alkene
c. alkyne
d. none of the above is correct
d. Plankton and algae
Petroleum is believed to have formed mostly from the anaerobic decomposition of buried
a. Dinosaurs
b. Fish
c. Pine trees
d. Plankton and algae
b. C5H12
The label on a container states that the product contains "petroleum distillates." Which of the following hydrocarbons is probably present?
a. CH4
b. C5H12
c. C16H34
d. C40H82
b. addition reaction
The reaction of C2H4 + Br2--> C2H2Br2 is a (an)
a. substitution reaction
b. addition reaction
c. addition polymerization reaction
d. substitution polymerization reaction
d. polymer
Ethylene molecules can add to each other in a reaction to form a long chain called a
a. monomer
b. dimer
c. trimer
d. polymer
d. any of the above is correct
Chemical reactions usually take place on an organic compound at the site of a
a. double bond
b. lone pair of electrons
c. functional group
d. any of the above is correct
b. A hydrocarbon group with a name ending in -yl
The R in ROH represents
a. A functional group
b. A hydrocarbon group with a name ending in -yl
c. An atom of an inorganic element
d. A polyatomic ion that does not contain carbon
a. A functional group
The OH in ROH represents
a. A functional group
b. A hydrocarbon group with the name ending in -yl
c. The hydroxide ion, which ionizes to form a base
d. The site of chemical activity in a strong base
c. 10 proof
What is the proof of a "wine cooler" that is 5 percent alcohol by volume?
a. 2.5 proof
b. 5 proof
c. 10 proof
d. 50 proof
d. glycol
An alcohol with two hydroxyl groups per molecule is called
a. ethanol
b. glycerol
c. glycerin
d. glycol
c. CH3COOH
A bottle of wine that has "gone bad" now contains
a. CH3OH
b. CH3OCH3
c. CH3COOH
d. CH3COOCH3
c. Amino acid molecules
A protein is a polymer formed from the linking of many
a. Glucose units
b. DNA molecules
c. Amino acid molecules
d. Monosaccharides
c. cellulose
Which of the following is not converted to blood sugar by the human body?
a. lactose
b. dextrose
c. cellulose
d. none of the above
b. Ester
Fats from animals and oils from plants have the general structure of a (an)
a. Aldehyde
b. Ester
c. Amine
d. Ketone
d. Hydrogen
Liquid oils from plants can be converted to solids by adding what to the molecule?
a. Metal ions
b. Carbon
c. Polyatomic ions
d. Hydrogen
a. the replacement of a hydrogen by a chlorine
The basic difference between a monomer of polyethylene and a monomer of polyvinyl chloride is
a. the replacement of a hydrogen by a chlorine
b. the addition of four fluorines
c. the elimination of double bonds
d. the removal of all hydrogens
b. Do not readily decompose and tend to accumulate
Many synthetic polymers become a problem in the environment because they
a. Decompose to nutrients, which accelerates plant growth
b. Do not readily decompose and tend to accumulate
c. Do not contain vitamins as natural materials do
d. Become a source of
c. double bonds
Which of the following terms does not describe an alkane?
a. paraffin
b. single bonds
c. double bonds
d. straight chain
a. butane
A straight chain alkane with four carbons is called
a. butane
b. tetraalkane
c. quatrane
d. propane
c. CnH2n
What is the general formula for alkenes?
a. CnH2n+2
b. CnH2n+4
c. CnH2n
d. CnH2n-2
b. Unsaturated
An organic molecule that does not contain the maximum number of hydrogen atoms is
called
a. Deficient
b. Unsaturated
c. Saturated
d. Incomplete
d. CnH2n-2
What is the general formula for an alkyne?
a. CnH2n+2
b. CnH2n+4
c. CnH2n
d. CnH2n-2
c. alkyne
Acetylene is a fuel used in welding and an important reactant in the synthesis of plastics. Acetylene is an
a. alkane
b. alkene
c. alkyne
d. alkaline
c. Solvents
Aromatic hydrocarbons are often used as
a. Perfumes
b. Soaps
c. Solvents
d. Odorants
c. boiling point
Fractional distillation separates different fractions by differences in their
a. melting point
b. freezing point
c. boiling point
d. origin
b. Octane rating
The rate of combustion of gasoline is quantified by
a. NASCAR rating
b. Octane rating
c. Kern rating
d. Leading number
d. motor oil
A petroleum product that is composed of hydrocarbons with sixteen to eighteen carbons atoms per molecules is
a. gasoline
b. asphalt
c. paraffin
d. motor oil
a. isopropyl alcohol
The common name of 2-propanol is
a. isopropyl alcohol
b. wood alcohol
d. methyl alcohol
d. moonshine
c. Lactic acid
The organic acid that is found in sour milk, pickles, and in your muscles as a product of
carbohydrate metabolism is
a. Acetic acid
b. Palmitic acid
c. Lactic acid
d. Citric acid
d. Esters
What are the organic compounds that are used in perfumes and for artificial flavors?
a. Carboxylic acids
b. Alcohols
c. Ethers
d. Esters
c. Carbohydrates
Sugars, starches, and cellulose belong to which class of organic compounds?
a. Proteins
b. Fatty acids
c. Carbohydrates
d. Enzymes