Question

question 3 (1 point)
identify the following three pairs of structures i, ii and iii as stereoisomers (cis/trans), structural isomers, the same or different structures (with different molecular formulas).
i
ii
iii
1 = stereoisomers, ii = different, iii = stereoisomers
1 = stereoisomers, ii = stereoisomers, iii = structural isomers
1 = stereoisomers, ii = structural isomers, iii = the same
1 = the same, ii = different, iii = stereoisomers

Explanation:

Step1: Analyze pair I

The two structures in pair I have the same connectivity but different spatial arrangements around the double - bond, so they are stereoisomers (cis/trans isomers).

Step2: Analyze pair II

The two structures in pair II have different connectivities of atoms, so they are structural isomers.

Step3: Analyze pair III

The two structures in pair III are identical in connectivity and spatial arrangement, so they are the same.

Answer:

I = stereoisomers, II = structural isomers, III = the same