Observe the above table and answer the following questions. 1) Write the general formula of Alkanes.

Question

Organic compound	Methane	Ethane	Propene	Butene	Pentyne	Hexyne
Formula	CH4	C2H6	C3H6	C4H8	C5H8	C6H10

Observe the above table and answer the following questions.

1) Write the general formula of Alkanes. 

2) Mention the names of unsaturated hydrocarbons. 

3) Write the homologous series of Alkynes. 

4) Write the formula of Hexyne.

Answer 1

1) General formula for Alkanes : C_n H_2n+2 . 

2) Unsaturated Hydrocarbons in the list are : 

Propene C₃H₆ , Butene C₄H₆ , Pentyne C₅H₈, Hexyne C₆H₁₀. 

3) Homologous series of Alkynes is C₂H₂ (Ethyne), C₃H₄ (Propyne), C₄H₆ (Butyne), C₅H₈ (Pentyne), C₆H₁₀ (Hexyne).

4) Formula of Hexyne is C₆ H₁₀