Question 9 of 32intermediate🔧 ApplyShort Answer2 marks

Draw cis and trans isomers of the following compounds. Also write their IUPAC names: (i) CHCl = CHCl (ii) C₂H₅CCH₃ = CCH₃C₂H₅

(i)
Answer

cis-1,2-Dichloroethene and trans-1,2-Dichloroethene

(ii)
Answer

cis-3,4-Dimethylhex-3-ene and trans-3,4-Dimethylhex-3-ene

Explanation

The question requires drawing the geometrical isomers (cis and trans) for two given alkenes and naming them according to IUPAC rules. In cis isomers, identical groups are on the same side of the double bond, whereas in trans isomers, they are on opposite sides.