Question
Wed December 19, 2012 By:
 

why 2,1-methylpropane,1,1-Dimethylpropane,1-methylpropane and several othres like this are not the isomers of pentane ? why has it only three isomers?

Expert Reply
Wed December 19, 2012
1- methylpropane is simply n-butane..so no isomer of pentane can be made...
1,1-dimethylpropane is also substituted butane....
2,1- methylpropane is wrongly wriiteen ... it should be 1,2-dimethyl propane and still it doent exist isomerically as it is again substituted butane and not pentane... 
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