12.Which conformation of dichlorocyclohexane is represented by the Newman projection below? CI H H H CI H H H A) 1-axial, 3-axial B) 1-equatorial, 4-equatorial C) 1-equitorial, 4-axial D) 1-equatorial, 3-axial

Do not give handwriting solution.

6. Sort the following conformations of 1-chloropropane from most stable to least stable. H CI Hн Н Н Н CH₂ н H н CI 2) Н CH, H 3) CH1 CI

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Use flat representation of rings, not chair in the drawing. Determine the most and least stable.    Consider the most stable chair for each of these isomers, and then draw the most stable and least stable isomer based on a comparison of the best chair for each one.

V. Draw the two chair conformations of cis-1-chloro-3-methylcyclohexane. Label the more stable conformation. Show your calculations. Calculation Calculation

87. Subject  :- Chemistry

4. Draw in the substituents on the ring flipped conformers of each molecule to predict which molecules is lower in energy. Me. Me Me Me. 'Me a) CI b) ÖH

2 2. Draw all possible conformations for 1,1,2-tribromopropane. Label all unfavc interactions. Which conformation is most stable? Explain. TI

Q5: Label the site of torsional and steric strain in each conformer a. H H CH₂ CH₂ CH₂ b. CH₂ CH₂ H-CH₂ C. TCHCH₂ CH₂CH₂