(a) Depict Chair and flipped inverted chair conformations of the subsequent 1, 4-dimethylcyclohexanes and circle the more stable chair conformation of each stereoisomer (cis- or trans-).
(b) Which stereoisomer cis- or trans- is more stable and why?
(i) cis-1,4-dimethylcyclohexane
(ii) trans-1,4-dimethylcyclohexane