Isomers of Alkanes

What are structural isomers?

• Structural isomers are compounds with the same molecular formula and identical structural arrangements of atoms.

• Structural isomers are compounds with different molecular formulas but the same structural arrangements of atoms.

• Structural isomers are compounds that have the same molecular formula but different structural arrangements of atoms.

• Structural isomers are compounds with different molecular formulas and different structural arrangements of atoms.

How many structural isomers can be formed for the alkane C4H10?

• 12

• 4

• 16

• 8

What is the molecular formula of the straight-chain alkane with 5 carbon atoms?

• C5H12

• C4H10

• C5H14

• C5H10

How many structural isomers can be formed for the alkane C6H14?

• 30

• 12

• 50

• 64

What is the IUPAC name of the structural isomer of butane with a branch on the second carbon atom?

• 3-methylpropane

• 2-ethylbutane

• 1-methylpropane

• 2-methylpropane

What is the molecular formula of the straight-chain alkane with 8 carbon atoms?

• C8H18

• C8H20

• C8H16

• C8H24

What is the IUPAC name of the structural isomer of pentane with a branch on the third carbon atom?

• 2,2-dimethylpropane

• 3-methylbutane

• 2-methylbutane

• 2-ethylpropane

What is the molecular formula of the straight-chain alkane with 6 carbon atoms?

• C6H12

• C6H16

• C6H14

• C6H10

How many structural isomers can be formed for the alkane C5H12?

• 32

• 8

• 20

• 12