Introduction to Alkanes and Alkenes: Chemical Formulas, Naming, and Differences

The video tutorial introduces alkenes, a family of hydrocarbons with carbon-carbon double bonds. It explains the homologous series and the pattern of increasing carbon and hydrogen atoms. The video contrasts alkenes with alkanes, highlighting the concept of saturation. It also covers isomerism, where alkenes can have different structures but the same molecular formula. Finally, it provides a guide on naming alkenes based on the number of carbon atoms and the position of double bonds.

What is the common feature of the alkene family?

• Triple bond between carbons

• Presence of oxygen

• Carbon-carbon double bond

• Carbon-carbon single bond

How do alkenes differ from alkanes in terms of saturation?

• Both are saturated

• Alkenes are unsaturated, alkanes are saturated

• Both are unsaturated

• Alkenes are saturated, alkanes are unsaturated

What are isomers?

• Compounds with the same structure and formula

• Compounds with the same molecular formula but different structures

• Compounds with different structures and different formulas

• Compounds with the same structure but different formulas

In the name 'pent-2-ene', what does the '2' indicate?

• The type of bond present

• The number of carbon atoms

• The number of hydrogen atoms

• The position of the double bond

Why is there no compound named 'beaute free'?

• It lacks a double bond

• It would be equivalent to starting from the other end

• It is not a recognized alkene

• It has too many carbon atoms