PORTAGE LEARNING CHEM 104
COMPREHENSIVE EXAM 2026 FULL
QUESTIONS AND SOLUTIONS GRADED A+
◉ Inorganic chemistry . Answer: Study of compounds that do not
contain carbon
◉ Why can carbon form complex structures? . Answer: Carbon has 4
valence electrons which allows it to readily form for covalent bonds,
with itself and with other elements
◉ Describe general structure of hydrocarbons . Answer: 1: made up of
the elements carbon and hydrogen
2: combustible in the presence of oxygen
3: simplest classification of organic compounds
◉ Alkane . Answer: A type of hydrocarbon that contains only single
covalent bonds between carbon atoms
◉ Alkene . Answer: A hydrocarbon that contains at least one double
bond between carbon atoms
, ◉ Alkyne . Answer: Hydrocarbon with at least one or more triple bonds
◉ Cycloalkane . Answer: Alkane that forms a ring structure
◉ aromatic hydrocarbon . Answer: Hydrocarbon that contains a
benzene ring
◉ Methane . Answer: 1 carbon
◉ Ethane . Answer: 2 carbons
◉ Propane . Answer: 3 carbons
◉ Butane . Answer: 4 carbons
◉ Pentane . Answer: 5 carbons
◉ Hexane . Answer: 6 carbons
◉ Heptane . Answer: 7 carbons
◉ Octane . Answer: 8 carbons
COMPREHENSIVE EXAM 2026 FULL
QUESTIONS AND SOLUTIONS GRADED A+
◉ Inorganic chemistry . Answer: Study of compounds that do not
contain carbon
◉ Why can carbon form complex structures? . Answer: Carbon has 4
valence electrons which allows it to readily form for covalent bonds,
with itself and with other elements
◉ Describe general structure of hydrocarbons . Answer: 1: made up of
the elements carbon and hydrogen
2: combustible in the presence of oxygen
3: simplest classification of organic compounds
◉ Alkane . Answer: A type of hydrocarbon that contains only single
covalent bonds between carbon atoms
◉ Alkene . Answer: A hydrocarbon that contains at least one double
bond between carbon atoms
, ◉ Alkyne . Answer: Hydrocarbon with at least one or more triple bonds
◉ Cycloalkane . Answer: Alkane that forms a ring structure
◉ aromatic hydrocarbon . Answer: Hydrocarbon that contains a
benzene ring
◉ Methane . Answer: 1 carbon
◉ Ethane . Answer: 2 carbons
◉ Propane . Answer: 3 carbons
◉ Butane . Answer: 4 carbons
◉ Pentane . Answer: 5 carbons
◉ Hexane . Answer: 6 carbons
◉ Heptane . Answer: 7 carbons
◉ Octane . Answer: 8 carbons
