Question 5 Choose the correct representation of the structure using chair conformation. H H H CH3 CH3 H CH3 H CH3 H H A H B A CH3 H CH3 H H CH₁ H CH₂ H H H H H CH3 C H₁C D H CH₂ CH3 H H H H H CH3 CH3 H CH3 E F H CH₂ CH₂ ACH₂ H A B C D E F

QUESTION 23 Choose the chair conformation that represents the most stable conformation of the given skeletal structure. CH3 CH3 H CH3CH3 H- H- - CH3 H3C H3C- - CH3 CH3 H нн H H 1 2 3 H H CH3 H3C CH3 CH3 H3C- - CH3 H- H H H3C CH3 CH3 4 5 6

Draw the structure for the most stable chair conformation of cis-1-isopropyl-3-methylcyclohexane. Use the cyclohexane conformation drawing tool and guide points to draw each structure. Click and drag to start drawing a structure. E C C X E Smy ct C с 002 18 Ar

Question 4 Choose the correct representation of the structure using chair conformation. A C H H Br од Br B 044 H H ठ H Br H Br He H D H H Br E A B C D E F H H H Br F Br H

What chair structure corresponds to the highest energy conformation of trans-1,4-dichlorocyclohexane (shown on left)? CI CI CI CI CI CI CI .CI CI A C D CI B O O O O

K Starting from the Newman projection below, rotate the back carbon to provide the structure in the most stable conformation. CI H3C 4 CI CH3 Drawing L H

2. Draw the compound in the skeletal form. CH,CH,CH,CH3 H₂CH₂C wy H H NH₂ CH3 3. Draw a chair conformation.

Following is the Structural formal of Chloropropane H H H 2. H Draw Newman projections for all staggered and eclipsed conformation formed by rotation about C1 - C2 bond from 0° to 360°. b) Which Staggered conformation(s) has the lowest energy; which has the highest energy? c) Which eclipsed conformation(s) has the lowest energy, which has thhe highest energy?

Which of the following chair conformation is lowest in energy? %3D IV O I O III O IV O V

Which is the least stable chair conformer of the following compound? OH OH но но Lo II IV