有機化學基礎：练习题

Which of the following is the correct structural formula for ethene?

A hydrocarbon molecule contains 5 carbon atoms and belongs to the alkane series. How many hydrogen atoms does it contain, and what is its IUPAC name?

Consider the complete combustion of propane (\(C_{3}H_{8}\)) in excess oxygen. What is the sum of the coefficients in the balanced chemical equation?
\(a C_{3}H_{8} + b O_{2} \rightarrow c CO_{2} + d H_{2}O\)

What is the general formula for the homologous series of alkanes?

Which of the following statements best describes a homologous series?

What is the functional group present in all alcohols, and what suffix is used to name them?

Compare the structures of ethane and ethene. Which molecule contains a double bond, and how does this affect its chemical reactivity?

Explain why isomers like butane and 2-methylpropane have the same molecular formula but different boiling points.

Organic Chemistry Basics
(a) Define the term 'homologous series'.
(b) State two characteristics that members of the same homologous series share, other than having the same general formula.

Isomerism is a key concept in organic chemistry.
(a) Draw and name two structural isomers of butane, \(C_{4}H_{10}\).
(b) Explain why the boiling point of the branched isomer is lower than that of the straight-chain isomer.