ALKANES

What is the general formula for acyclic alkanes?

• CnH2n

• CnH2n+2

• CnHn+2

• CnHn

What is the general formula for acyclic alkanes?

What is the structural formula that shows all atoms and bonds in a molecule?

• Expanded Structural Formula

• Condensed Structural Formula

• Skeletal Structural Formula

• Continuous-chain Alkane

What is an alkyl group?

• A group of atoms that would be obtained by removing a hydrogen atom from an alkane

• A group of atoms that would be obtained by removing a carbon atom from an alkane

• A group of atoms that would be obtained by removing an oxygen atom from an alkane

• A group of atoms that would be obtained by removing a nitrogen atom from an alkane

How should the main chain be numbered in a branched-chain alkane?

• In alphabetical order

• In reverse alphabetical order

• In order of increasing molecular weight

• In order to give the lowest possible number to the first substituent encountered

What is the correct IUPAC name for the compound CH3-CH(CH3)-CH2-CH3?

• 2,2-dimethylbutane

• 2-methylpentane

• 3-methylpentane

• 2,3-dimethylbutane

What is the line angle structural formula for an alkane?

• A structural representation in which a line represents a carbon–carbon bond and a carbon atom is understood to be present at every point where two lines meet and at the ends of lines

• A structural representation in which a line represents a carbon–carbon double bond and a carbon atom is understood to be present at every point where two lines meet and at the ends of lines

• A structural representation in which a line represents a carbon–carbon triple bond and a carbon atom is understood to be present at every point where two lines meet and at the ends of lines

• A structural representation in which a line represents a carbon–carbon single bond and a carbon atom is understood to be present at every point where two lines meet and at the ends of lines

What is the prefix used to indicate the presence of a ring in a cycloalkane?

• Cyclo-

• Iso-

• Sec-

• Tert-

How are ring substituents numbered in a cycloalkane?

• Beginning with the substituent of higher alphabetical priority and proceeding in the direction that gives the other substituent the lower number

• Beginning with the substituent of lower alphabetical priority and proceeding in the direction that gives the other substituent the higher number

• Beginning with the substituent closest to the first carbon atom in the ring

• Beginning with the substituent closest to the last carbon atom in the ring

What are heterocyclic compounds?

• Cyclic organic compounds in which all carbon atoms in the ring have been replaced with atoms of other elements

• Cyclic organic compounds in which one or more carbon atoms in the ring have been replaced with atoms of other elements

• Acyclic organic compounds in which all carbon atoms have been replaced with atoms of other elements

• Acyclic organic compounds in which one or more carbon atoms have been replaced with atoms of other elements