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[Post New]4 Apr 2008 19:19:08 IST
    Subject: Re:Benzene: Part 2
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dev_22oct (1369)

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Q )p-nitrobenzene sulphonic acid is formed fron the reaction of p-nitrobenzene but chlorobenzene will not give benzene sulphonic acid on treatment with NaHSO3
 
error:I THINK DEAR  ITS NOT P NITROBENZENE ITS p-chloronitrobenzene.
 
ans) in p-chloronitrobenzene nucleophile  displacement of Cl- by SO3Na. here the reagent SO32- is a nucleophile , with an unshared pair of electrons on sulphur.
in ordinary sulphonation of , the reagent,SO3 is an electrophile with electrondeficient sulphur
 
Devendra Kumar Shukla
M.Sc physical Chemistry
Currently working in Daswani classes
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