Introduction to Organics

What is a homologous series?

• Group of compounds with similar chemical properties

• Group of compounds with general trend in physical properties

• Group of compounds with same general formula

• Group of compounds with all of the above

What is the prefix for a three long carbon chain?

• but-

• prop-

• hex-

• hept-

What is the prefix for a six long carbon chain?

• prop-

• pent-

• hex-

• eth-

What are alkanes?

• Saturated hydrocarbons

• Saturated compounds

• Unsaturated compounds

• Unsaturated hydrocarbons

What happens an an alkane carbon chain length increases? (pick 2)

• Weaker intermolecular forces

• Lower volatility

• Higher boiling point

• Lower flash point

What is the general formula for an alkane?

• CnH2(n+1)

• CnH2n

• CnHn+2

• C2nHn

What are structural isomers?

• molecules with the same molecular formula and the same structural formula

• atoms with the same molecular formula but different structural formula

• molecules with the same molecular formula but different structural formula

• molecules with the same atomic number but different atomic mass

Name the hydrocarbon

• butane

• ethane

• methane

• propane

Name the hydrocarbon

• But-1-ene

• Butene

• But-2-ane

• But-1-ane

Name the hydrocarbon

• 2-ethylhexane

• 2-methylpentane

• 3-mehtylhexane

• 2-methylhexane