Hydrocarbons

Short Answer Type

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Which of the following compounds will show cis-trans isomerism?

(i)(CH3)2C = CH-C2H5
(ii) CH2 = CBr2
(iii) C2H5CH = CH-CH2
(iv) CH3CH = CClCH3 

Structure (iii) and structural (iv) show cis-trans isomerism while structure (i) and (ii) do not show cis-trans isomerism because two identical groups are attached to one of the doubly bonded carbon atoms.

 

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