PHYSICAL PROPERTIES OF ALCOHOL

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1. State: The lower member of alcohols are usually colourless liquids whereas higher members are usually colourless and odourless solids. 2.Solubility: Alcohols are soluble in water. This is due to the hydroxyl group in the alcohol, which is able to form hydrogen bonds with water molecules and their decline solubility is due to the increase in … Read more

Types of Alcohol

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1) Absolute alcohol: Absolute alcohol is a common name for the chemical compound ethanol. To qualify as “absolute,” the ethyl alcohol must contain no more than one percent water. In other words, absolute alcohol is liquid alcohol that is at least 99 percent pure alcohol by weight and it is preparedby two method: Azeotropic distillation: a) … Read more

Distinction of Primary, secondary and tertiary alcohols by Victor Meyers Method

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Primary, secondary and tertiary alcohols can be distinguished by the following methods: 1.Victor Meyer’s Method   2. Lucas’s test 3. Oxidation Test 1. Victor Meyer’s Method: This is the well-known method to distinguish 1⁰, 2 ⁰ and 3 ⁰ alcohols by using different reagents and colour formation. Firstly, given alcohol is treated with red P4 and … Read more

ALCOHOLS

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ORGANIC COMPOUNDS WHICH ARE DERIVED BY REPLACING ONE OR MORE HYDROGRN ATOMFROM THE ALPHATIC HYDROCARBON BY THE SAM NUMBER OF HYDROXYL GROUPS ARE ALIPHATIC ALCOHOLS. Depending on the types of hydrocarbons, they are of two types: aliphatic and aromatic alcohols. a. Alcohols have been classified as following on the basis of number of OH group: … Read more

Introduction of Chemical Bonding

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The attractive force which holds various constituents together in different chemical species is called a chemical bond.There are various mode of chemical combination. Kossel Lewis Approach W. Kossel and G.N Lewis in 1916 . “According to octet, atoms of various elements enter into chemical combination so as to attain the configuration of eight electrons in … Read more