Halogenoalkanes 0.0 / 5 ? ChemistryHalogenoalkanesASAQA Created by: Joseph FurnivalCreated on: 03-04-18 11:30 What are the prefixes for the different halogenoalkanes Fluoro,chloro,bromo,iodo 1 of 17 What is the mechanism called for the reaction of halogenoalkanes Substitution or elimination 2 of 17 what is a nucleophile A substance that has a lone pair of electrons or one that is an electron pair donor 3 of 17 what is a substitution reaction swapping a halogen atom for another group of atoms 4 of 17 why do we use curly arrows in the mechanism To show the movement of the lone pair of electrons 5 of 17 what do the nucleophiles do to the carbon atom in the mechanism They attack the carbon which is attached to the halogen 6 of 17 What does the rate of substitution depend on The strength of the C-X bond the weaker the bond the easier it is to break the bond 7 of 17 which of the haloalkanes are fastest to susbtitute iodoalkanes 8 of 17 which of the haloalkanes are slowest to substitute fluoroalkanes 9 of 17 what is formed when aqueous silver nitrate is combined with a haloalkane silver halide precipitate 10 of 17 If a precipitate is formed quickly what does this say about the substitution reaction The substitution reaction will be quicker and the haloalkane will be more reactive 11 of 17 what are the three types of reagent used in a substitution reaction cyanide ions,hydroxide ions and ammonia 12 of 17 what does an elimination reaction involve The removal of a small organic molecule usually water 13 of 17 what usually happens in an elimination reaction The bond is broken turning it into an alkene 14 of 17 what are the compounds that cause a hole in the ozone CFCs 15 of 17 How do chlorine atoms lead to the decomposition of the atmosphere They catalyse the reaction because they are regenerated and provide an alternative route with lower activation energy 16 of 17 What are the new compounds called used in refrigerators HFCs 17 of 17
Comments
No comments have yet been made