2. Indicate whether the pairs of molecules shown in the table below are structural isomers, geometric isomers or not isomers. Molecule #1 Molecule #2 Relationship (structural isomers, geometric isomers or not isomers) H H H CI-c- CH HCCC! H H H C-C H-CH-C-H H H H H H H H HTC-NH-CH H-C-CN-H H H H H H H H Br Br H Br H Br H H Br Br H H Br Br H H Br Br H BE Br H Br Br Br -- c= Br H H