How many isomers of #C_5H_11OH# will be primary alcohols? Give their structures too.

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Answer 1 · 2018-01-16T21:35:56

There are four primary alcohols with formula #"C"_5"H"_11"OH"#.

Draw a five-carbon chain and add the #"OH"# group at all possible positions.

This gives pentan-1-ol.

Pentan-1-ol

Draw a four-carbon chain with a methyl group and add the OH group at all positions.

This gives 2-methylbutan-1-ol

2-methylbutan-1-ol

and 3-methylbutan-1-ol.

3-methylbutan-1-ol

Finally, draw a three-carbon chain with two methyl groups and add the OH group at all possible positions.

This gives 2,2-dimethylpropan-1-ol

2,2-dimethylpropan-1-ol