Question 1 Report
The 5\(^{th}\) member of an alkyne series is
Answer Details
The alkynes are a homologous series of unsaturated hydrocarbons containing a carbon-carbon triple bond. Their general formula is:
\[\text{C}_n\text{H}_{2n-2}\]
The series begins at \(n = 2\) (since at least two carbon atoms are needed to form a triple bond):
The 5th member has \(n = 6\): \(\text{C}_6\text{H}_{2(6)-2} = \text{C}_6\text{H}_{10}\).
C5H8 is the 4th member, not the 5th. C5H10 and C6H12 fit the alkene general formula (CnH2n), not the alkyne formula.
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