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How many structural isomers can you draw for pentane? 

There r 3 structural isomers of pentane ......

they r n-pentane (pentane) .... isopentane (2-methyl butane) .... neo-pentane (2,2-dimethyl propane) .....

The structurse r :-

Hope this helps !!!

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i guess its 3 ...

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1)5 carbons in a line

2)4 carbons in a staight line and the fifth one linked to second carbon( note that the 5th carbon attached to the third carbon is same as this so they are not counted here)

3)3 carbong in a row and 4th &5th carbon  liked to the 2nd carbon ..

hope clear ..

check this too http://www.gcsescience.com/o25.htm

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Dear Student,

Satyajit has posted correct answer.

Hope it is clear to you.

@ Satyajit,

Good effort! Your answers are really helpful to all the users of this community. Keep writing!!!

Best Wishes!

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There r 3 structural isomers of pentane ......

they r n-pentane (pentane) .... isopentane (2-methyl butane) .... neo-pentane (2,2-dimethyl propane) .....

The structurse r :-

Hope this helps !!!

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