Alcohols and their reactions Heat under reflux Alcohols and their reactions Dehydration of alcohols 0.0 / 5 ? ChemistryReactionsASOCR Created by: SolzCreated on: 21-02-14 13:23 What is a Phenol A hydroxyl group bonded to an arene 1 of 22 What is a secondary alcohol One that has two carbon atoms bonded to the carbon that the hydroxyl group(OH) is attatched to 2 of 22 Tertiary alcohol One that has 3 carbon atoms attatched to the carbon that the OH is bonded to 3 of 22 Primary Has on carbon directly attatched to the carbon that is attatched to the OH group. 4 of 22 What are the possible products of oxidation of alcohols ALDEHYDE, CARBOXYLIC ACID AND KETONE 5 of 22 What are the reagents and conditions(what is added and done) in the oxidation of a primary alcohol Acidified dichromate is added and the product is collected by distillation. Under partial Oxidation/ 6 of 22 What are product of the oxidaton of a primary alcohol Aldehyde and carboxylic 7 of 22 what reagents and conditions are involved in the oxidation of a primary alcohol to produce a carboxylic acid(COOH) Excess Acidified dichromate and heat under reflux 8 of 22 How are secondary alcohols oxidised(reagents&condition) Excess Acidified Dichromate and heated under reflux 9 of 22 What is the product from the oxidation of a secondary alcohol A ketone 10 of 22 What is the product of the oxidation of a Tertiary alcohol? NONE ,CAN'T . 11 of 22 Why is it useful to heat under reflux It allows reactions with volatile liquids to boil for longer periods of time to increase the rate and there by the yield 12 of 22 Name the 5 key parts of the reflux apparatus Water in , Water out, the condenser, reaction mixture and the Anti-bumping granuels 13 of 22 What is the purpose of the condenser It ensure any vapours are condensed to liquid and falls down into the vessel. 14 of 22 How should the condenser be fitted Verticallly over the vessel 15 of 22 Benefits of the condenser Avoids loss of reactants/products . Avoids risk of fire due to flammable vapour.Avoids risk of health problems due to toxic vapours 16 of 22 Define an Elimination Reaction A reaction in which one or more atoms or group of atoms are lost from a molecule 17 of 22 Define dehydration An elimination reaction in which water is removed from a saturated molecule(Alkane) to make an unsaturated molecule(Alkene). 18 of 22 What are the product of dehydration of an alcohol An Alkene + Water 19 of 22 What molecules are lost in the dehydration of alcohols H20 water from the alcohol is lost ( A OH AND H) 20 of 22 Describe the reagents and conditions of dehyration of alcohols in the LAB Heat under reflux and concentrated supfuric acid 21 of 22 Describe the reagents and conditions of dehyration of alcohols in INDUSTRY Alcohol is passed over ALUMINA(AL203) catalyst at 300 degrees HIgh temperature. 22 of 22
Basic concepts and hydrocarbons, Alcohols, Halogenoalkanes and analysis, Energy 1.0 / 5 based on 2 ratings
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