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# Organic Chemistry Questions - All Grades

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What is the name of the compound shown?
1. Benzene
2. Methylpentene
3. Toluene
4. (1) and (2)
Which of the following chemical formulas represents an organic compound that belongs to the same homologous series as that of the hydrocarbon shown?
1. $"C"_3 "H"_8$
2. $"C"_4 "H"_10$
3. $"C"_2 "H"_2$
4. $"C"_6 "H"_12$
Which of the following hydrocarbons must be an alkane?
1. $CH_4$
2. $C_5H_10$
3. $C_7H_12$
4. $C_14H_26$
College Organic Chemistry
The four classes of organic chemistry required by living things are
1. Carbohydrates, proteins, vitamins, and lipids
2. Carbohydrates, proteins, nucleic acids, and vitamins
3. Carbohydrates, proteins, nucleic acids, and lipids
4. Carbohydrates, vitamins, nucleic acids, and lipids
Why does carbon play an important role in the chemistry of living organisms?
1. Carbon helps organisms regulate temperature
2. Carbon atoms allow organisms to transmit molecules
3. Carbon is the most abundant element in organisms
4. Carbon atoms combine in many ways with atoms of carbon and with atoms of other elements
Which of the following is NOT TRUE about Carbon atoms?
1. A carbon atom has four valence electrons and can form four covalent bonds.
3. Carbon atoms can form bonds with other carbon atoms to make many different structures.
4. Carbon atoms can form double and triple bonds.
What is the difference between organic and inorganic compounds?
1. Inorganic compounds have more lipids than Organic compounds.
2. Inorganic compounds do not contain carbon, but organic compounds do.
3. Organic compounds are simple molecules.
A compound that contains only hydrogen and carbon is defined as
1. a monomer
2. an isomer
3. a hydrocarbon
4. a polymer
Which of the following compounds is not organic?
1. $NO_2$
2. $C_3H_8$
3. $C_6 H_12 O_6$
4. $CH_4$
Organic chemistry is currently defined as...
1. the study of compounds made only by living cells
2. the study of carbon-containing compounds
3. the study of natural compounds
4. the study of hydrocarbons