Chem 120 Organic Chemistry Questions and Answers with Complete Solutions

Chem 120 Organic Chemistry Questions
and Answers with Complete Solutions
Hydrocarbons - ANSWER compounds composed only of carbon and hydrogen

four basic types of hydrocarbons - ANSWER alkanes, alkenes, alkynes, aromatic
hydrocarbons

Alkane: Type of bonds and generic formula - ANSWER all single bonds
CⁿH²ⁿ⁺²
Saturated with Hydrogen (single bonds)

Structural formula - ANSWER how each carbon and hydrogen connected

Structure of alkanes - ANSWER carbons in alkanes are sp3 hybrids
tetrahedral geometry
only sigma bonds
FREE ROTATION

Condensed structural formula - ANSWER not all hydrogen bonds shown, but all Carbon
bonds are shown

Carbon skeleton formula - ANSWER no hydrogen shown (insinuated)
squiggle where each point is a carbon

minimum number of carbons necessary for hydrocarbon to form? - ANSWER 4

structural isomers - ANSWER have the same molecular formulas, but the atoms are
bonded in a different order

Organic Nomenclature - ANSWER based on # of carbon atoms and ending of the
hydrocarbon

organic nomenclature: for straight-chain alkanes - ANSWER base+suffix+ane
ie. propane
3-single bonded carbon chain

meth - ANSWER 1 carbon

eth - ANSWER 2 carbon

prop - ANSWER 3 carbon

but - ANSWER 4 carbon

pent - ANSWER 5 carbon