Metal ions catalyse the reaction
FeCl3 being a Lewis acid accepts one chlorine with electron pair leaving the other as chloronium ion (an electrophile) which attacks on benzene ring.
This reaction is of a substitution type by a 'alkyl-radical' mechanism:Cl2 + CH3-CH2-CH2-CH3 --> CH2Cl-CH2-CH2-CH3 + HClor (a bit more in favor)Cl2 + CH3-CH2-CH2-CH3 --> CH3-CHCl-CH2-CH3 + HCl
Reaction between an acid and a metal is usally, salt and hydrogen. So i think the reaction between chlorine and acid forms a salt and a gas.
no reaction
The reaction is Cl2 + H2O --> HCl + HClO
It undergoes substitution reaction reaction in presence of sunlight by forming four different product like chloroform,carbon tetrachloride etc.................
Chlorinated products of humic acid (or polyphenols) are formed (by substitution and or addition reactions) which gives them an awefull odor.
A nucleophilic substitution reaction would take place, replacing various numbers of chlorine atoms with iodine atoms. Thus a mixture of compounds is produced.
FeCl3 being a Lewis acid accepts one chlorine with electron pair leaving the other as chloronium ion (an electrophile) which attacks on benzene ring.
Substitution
The SN reaction is a substitution reaction. An example of the SN reaction is Br. H3CH2C.
It is substitution because hydrogen of carboxylic acid is replaced by an alkyl group.
CH3CH2CH3 + Br2 = CH3CHBrCH3 + HBr The major product formed from the reaction is 2-bromopropane. It is a free radical bromination reaction. It is called a substitution reaction because you are substituting a H an atom for a Br atom and making HBr.
methanol, substitution reaction
As there is an availability of lone pair of electrons on chlorine, it directs the benzene ring towards electrophilic substitution at ortho and para positions.. When we will draw the resonating structures of chloro benzene,we will see that negative charge resides at orho and para positions..
By the reaction of hydrogen and chlorine gas HCl (Hydrochloric acid) may be formed. To bring about this reaction free radicals of hydrogen and chlorine in the ionic form are needed.
Chlorine is from hydrochloric acid.