CIE A Level Chemistry復(fù)習(xí)筆記3.3.4 SN1 & SN2
Halogenoalkanes: SN1 & SN2 Mechanisms In?nucleophilic substitution?reactions involving halogenoalkanes, the halogen atom is replaced by a nucleophile These reactions can occur in two different ...
CIE A Level Chemistry復(fù)習(xí)筆記3.3.3 Elimination Reactions of Halogenoalkanes
Halogenoalkanes: Elimination Reactions In an?elimination?reaction, an organic molecule loses a small molecule In the case of halogenoalkanes this small molecule is a hydrogen halide (eg. HCl) The h...
CIE A Level Chemistry復(fù)習(xí)筆記3.3.2 Substitution Reactions of Halogenoalkanes
Nucleophilic Substitution Reactions of Halogenoalkanes Halogenoalkanes?are much more reactive than alkanes due to the presence of the?electronegative?halogens The halogen-carbon bond is polar causi...
CIE A Level Chemistry復(fù)習(xí)筆記3.3.1 Production of Halogenoalkanes
Production of Halogenoalkanes: Substitution & Addition Reactions Halogenoalkanes?are alkanes that have one or more halogens They can be produced from: Free-radical substitution?of?alkanes Elect...
CIE A Level Chemistry復(fù)習(xí)筆記3.2.11 Markovnikov's Rule
Alkenes: Stability of Cations & Markovnikov's Rule Carbocations?are positively charged carbon atoms with only three covalent bonds instead of four There are three types of carbocations: primary...
CIE A Level Chemistry復(fù)習(xí)筆記3.2.10 Electrophilic Addition of Alkenes
Alkenes: Electrophilic Addition The double bond in alkenes is an area of high electron density (there are four electrons found in this double bond) This makes the double bond susceptible to attack ...
CIE A Level Chemistry復(fù)習(xí)筆記3.2.9 Test for Unsaturation
Test for Unsaturation Halogens can be used to test if a molecule is?unsaturated?(i.e. contains a double bond) Br2(aq) is an orange or yellow solution, called?bromine water?and this is the halogen m...
CIE A Level Chemistry復(fù)習(xí)筆記3.2.8 Reactions of Alkenes
Reactions of Alkenes Alkenes are very useful compounds as they can undergo many types of reactions They can therefore be used as starting molecules when making new compounds Electrophilic addition ...
CIE A Level Chemistry復(fù)習(xí)筆記3.2.7 Production of Alkenes
Production of Alkenes: Elimination, & Dehydration Reactions & Cracking Alkenes can be made by a series of reactions including?elimination,?dehydration reactions?and?cracking Elimination rea...
