Below are isomers of tert-butylcyclohexanol in conformational structures. Two are cis-2-tert- butylcyclohexanol and two are cis-3-tert-butylcyclohexanol. Indicate which is the more stable conformation for each pair, and indicate which of all four conformations is the most stable.

1) Consider the following 5 compounds: NH2 H3C- NHh = white Cos H=red NH2 NH2 NH2 COOH H- -COOH COOH H3C čOOH NH2 čOOH H3C H- -NH2 ČOOH II II H3C H NH2 COOH H, COOH H3C. COOH NH2 NH2 COOH NH2 IV Indicate which of the following TWO structures are described by the following (use all ten a. possible combinations, +&4, I & II, &-V, 1& V, I & I,tt&V, H&V, II & IV, II & V, V-& Identical:+V, Enantiomers: | V,1-11 Diastereomers: lIV IV, N V b. Indicate which of the above compounds WILL rotate plane polarized light when dissolved in solution by writing their Roman numeral(s) here.

The molecule cis-1-bromo-4-isopropylcyclohexane can exist in two different chair conformations, which are interconvertible by means of a ring flip.  Draw the  most stable conformer.

Identify the correct chair conformations of the following compound and then indicate which one is more stable. OH OH OH HO 1 || 4 OI and II are correct chair structures and I is most stable OI and II are correct chair structures and II is most stable OI and III are correct chair structures and III is most stable O II and III are correct chair structures and II is most stable O II and III are correct chair structures and III is most stable |||

Please explain and give the correct answers