chemistry Exam Questions
and Answers
Homologous series - Correct Answers: A series of organic compounds that have the same general
formula, similar chemical reactions.
Hydrocarbon - Correct Answers: A compound containing only the elements hydrogen and carbon
Saturated - Correct Answers: An organic compound in which all the bonds are single bonds
Unsaturated - Correct Answers: An organic compound that contains a double bond
General formula - Correct Answers: A formula that states the ratio of atoms of each element in the
formula of every compound in a particular homologous series
Isomerism - Correct Answers: Compounds that have the same molecular formula but different displayed
formulae are said to exhibit this
Alkanes - Correct Answers: A homologous series of compounds that have the general formula CnH2n+2.
Same physical and chemical properties.
CH₄ - Correct Answers: Molecular formula for methane
C₂H₆ - Correct Answers: Molecular formula for ethane
C₃H₈ - Correct Answers: Molecular formula for propane
C₄H₁₀ - Correct Answers: Molecular formula for butane