Alkanes & Alkenes

The video tutorial explains the structure and bonding of alkanes and alkenes. Alkanes are saturated hydrocarbons with single covalent bonds, exemplified by methane and ethane. The general formula for alkanes is CnH2n+2. Alkenes, like ethene and propene, are unsaturated with double covalent bonds and follow the formula CnH2n. The tutorial covers the molecular and structural formulas of these hydrocarbons, emphasizing the pattern in their homologous series.

What type of bonds do alkanes contain?

• Double covalent bonds

• Triple covalent bonds

• Single covalent bonds

• Ionic bonds

What is the molecular formula for ethane?

• C2H6

• C3H8

• C4H10

• C2H4

Using the general formula CnH2n+2, what is the molecular formula for decane?

• C10H20

• C10H18

• C10H22

• C10H24

What distinguishes alkenes from alkanes?

• Presence of ionic bonds

• Presence of triple bonds

• Presence of double bonds

• Presence of single bonds

How many hydrogen atoms are bonded to each carbon in ethene?

• One

• Two

• Three

• Four

What is the general formula for alkenes?

• CnH2n+2

• CnH2n

• CnHn+2

• CnH2n-2

For an alkene with 10 carbon atoms, what is the molecular formula?

• C10H18

• C10H22

• C10H16

• C10H20