Classify the following compunds as alkanes, alkenes and alkynes- C2H6, C2H4, C3H4, C4H8, C5H12, C5H8, C3H8.

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Solution

A compound with a general formula of C_nH_2n+2 is said to be an alkane which does not contain any double bond. Here n is the number of carbon.
if a compound satisfies the formula C_nH_{2n ,}then it falls in the category of alkene and hence have a double bond.
Whereas a compound falls in the category of C_nH_2n-2 is known as alkyne and have a triple bond.
Hence alkane are :- C₂H₆, C₅H₁₂ and C₃H₈
alkene are :- C₂H₄ and C₄H₈
alkyne ;- C₃H₄ and C₅H₈

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Classify the following compounds as alkanes, alkenes and alkynes. [3 MARKS]

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Which of the following will give addition reactions and why ?
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Q. Classify into alkanes, alkenes and alkynes :

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Give reason for your choice.

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