Give the characteristics of a homolgous series. The compounds of the homologous series have some characteristics – they are as follows: General formula: All the members of a series can be represented by the same general formula. All members of a series contain the same functional group i. e. alcohol has -OH group and amine has -NH2 group etc. We can prove this because the effect on blue litm... Hydrogen chloride gas and hydrochloric acid Hydrogen chloride, HCl, is a colourless gas at room temperature. © copyright 2020 QS Study. How Factors Affecting the Rate of Reaction are App... Exothermic Reaction vs Endothermic Reaction. For example, Alkane: CnH2n+1; Alkene: CnH2n; Alkyne: CnH2n-2; Alcohol: CnH2n+1OH; Ether: CnH2nO. Operational Definition of Reactivity of Metals towards Oxygen, Members of the series can be represented by a, Successive members differ from each other by. The alkanes, alkenes and cycloalkanes are examples of homologous series. With an increase in molar mass, there is a gradual change in physical properties. Alcohol Homologous Series. This diagram shows butane and methylpropane. The table shows some information about three members of a homologous series. The alkenes form a homologous series. The first step in the refining o... Alkenes undergo addition reactions with halogens. increasing boiling points). TRIPLE: 2.8 explain the relative reactivities of t... 2.9 recall the colours and physical states of the ... 2.10 make predictions about the properties of othe... 2.11 understand the difference between hydrogen ch... 2.12 explain, in terms of dissociation, why hydrog... 2.13 describe the relative reactivities of the ele... 2.14 describe experiments to demonstrate that a mo... 2.15 understand these displacement reactions as re... 2.16 recall the gases present in air and their app... 2.17 explain how experiments involving the reactio... 2.18 describe the laboratory preparation of oxygen... 2.19 describe the reactions of magnesium, carbon a... 2.20 describe the laboratory preparation of carbon... 2.21 describe the formation of carbon dioxide from... 2.22 describe the properties of carbon dioxide, li... 2.23 explain the use of carbon dioxide in carbonat... 2.24 understand that carbon dioxide is a greenhous... 2.25 describe the reactions of dilute hydrochloric... 2.27 describe the use of anhydrous copper(II) sulf... 2.28 describe a physical test to show whether wate... 2.29 understand that metals can be arranged in a r... 2.30 describe how reactions with water and dilute ... 2.31 deduce the position of a metal within the rea... 2.32 understand oxidation and reduction as the add... 2.33 understand the terms redox, oxidising agent, ... 2.34 describe the conditions under which iron rusts. The chemistry and uses of acids, bases and salts, Summary of Qualitative Analysis of Organic, Chemistry – Ionic and covalent bonding, polymers and materials, Chemical Analysis using paper chromatography, Calculating masses in reactions – 3 important steps, Calculating the percentage mass of an element in a compound. They have the same number of each type of atom but may have different physical and chemical properties. © 2018 A* Chemistry. The structural formulae are different though, so they are isomers of each other. Alkenes are referred to as unsaturated molecules. Maths tutors Physics tutors Chemistry tutors Biology tutors English tutors A-Level tutors GCSE tutors IB tutors. Homologous Series A homologous series is a group of compounds with similar characteristics and the same general formula. However, with increasing molar mass the chemical reactivity decreases to some extent. The alkanes, alkenes and cycloalkanes are examples of homologous series. The alkanes, alkenes and cycloalkanes are examples of homologous series.