Understanding Constitutional Isomers of C4H10

What is the general formula for alkanes that C4H10 fits into?

• CnH2n+2

• CnH2n

• CnH2n+1

• CnH2n-2

How many hydrogen atoms are bonded to the first carbon in the straight-chain isomer of C4H10?

• Four

• Three

• Two

• One

In the second isomer of C4H10, how many carbon atoms are in the main chain?

• Five

• Four

• Three

• Two

Why can't a new isomer be formed by placing two extra carbons on a two-carbon chain?

• It is identical to the first isomer.

• It results in a different molecular formula.

• It forms a ring structure.

• It creates a double bond.

What happens if the remaining carbons are placed on the first carbon of a two-carbon chain?

• It results in a different molecular formula.

• It forms a new isomer.

• It creates a double bond.

• It is identical to the second isomer.