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Homologous Series

Chemistry ⇒ Carbon and Organic Chemistry

Homologous Series starts at 10 and continues till grade 12. QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Homologous Series. How you perform is determined by your score and the time you take. When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 10
Calculate the molecular formula of the next member after butane (C4H10) in the alkane homologous series.
Calculate the molecular mass of pentane (C5H12). (C = 12, H = 1)
Describe two similarities between members of a homologous series.
Explain why members of a homologous series show a gradation in physical properties.
Explain why the members of a homologous series have similar chemical properties.
Explain why the members of a homologous series have similar methods of preparation.
Name the first three members of the alkene homologous series.
State one reason why the boiling points of members of a homologous series increase with molecular mass.
State the general formula for the homologous series of alkenes.
State two differences between members of a homologous series.
What is a homologous series in organic chemistry?
A compound has the molecular formula C5H10. To which homologous series could it belong? Justify your answer.
A student claims that the difference in molecular formula between two consecutive members of the homologous series of alkynes is C2H2. Is this statement correct? Justify your answer.
A student is given two unknown organic compounds. Both have similar chemical reactions but different boiling points. Suggest a reason why they might belong to the same homologous series.
Explain, with reference to intermolecular forces, why the melting and boiling points of members of a homologous series increase as the number of carbon atoms increases.
Given the general formula for the homologous series of aldehydes is CnH2n+1CHO, write the molecular formula for the member with 4 carbon atoms.