1.

Molecular formula of a hydrocarbon is C_5H_(10).What type of isomerisms are exhibited by it ? Give the structural formula of the isomes .

Answer»

SOLUTION :Molecular formula `C_5H_(10)` corresponds to pentene.It can EXHIBIT position isomerism and chain isomerium .
Possible structural formula are
(i) `underset("1-Penten ")(CH_2=CH)-CH_2-CH_2-CH_3`
(ii)`underset("2-Pentene")(CH_3-CH)=CH-CH_2-CH_3`
(iii) `H_2C=overset(CH_3)overset(|)C-CH_2-CH_3`
(iv) `H_2C=overset(CH_3)overset(|)C-CH_2-CH_3`
`H_3-overset(CH_3)overset(|)C=CH-CH_3`
(I),(ii),(iii),(iv),(v),are position isomers
(i),(v),(i),(v),(iii),(ii),(iv),(ii),(v)are chain isomers


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