Which conformer(s) below represents highest energy staggered conformation of 2- methylbutane? CH3 Н. H CH3 I H CH3 01 O 11 OI I and II O III H₂C H CH3 H II H CH3 H H CH3 III CH3 CH3

Please be very confident in your answer

Identify the most stable chair conformation of the most stable isomer of 1-ethyl-3-isopropylcyclohexane. 01 O HII ON OV III IV

What are the relative energy levels of the three staggered conformations of 2,3-dimethylbutane when looking down the C2-C3 bond? Me Me H Me Me Me Me Me. Me Conformation: 191 1ක් පුදා H Me Me Me H H H A B C Me A is the highest energy conformation and C is the lowest (energy level of B is in between the two) O A and B are equal energy, and C is the highest energy conformation A and B are equal energy, and C is the lowest energy conformation C is the highest energy conformation and A is the lowest (energy level of B is in between the two) O B is the highest energy conformation and C is the lowest (energy level of A is in between the two)

What is the most stable chair conformation of the 4-methoxy-1,2- dimethylcyclohexane structure given below? A a B b с с D d OCH: "CH3 H3C 4-methoxy-1,2-dimethylcyclohexane OCH: OCH3 H3C H3C- H3C- OCH3 H3C -OCH3 ĆH: CH3 CH3 CH3 A B D

Which of conformations in the options is a correct conformation of the following molecule and has the lowest energy? O CH3 CH3 it CH3 H3C CH3 CH3 CH3 CH3 CH3 H3C CH3 CH3

Which of the following is the correct Newman projection for the following compound as viewed down the indicated bond in the conformation shown? CL H Br CH3 O E) V O D) IV O A) I OB) II O C) III H CH3 1 Br CH3 H CH3 CI || H Br H CH37 H CI ||| CH3 Br H Br CH3 CI IV CH3 H CL Br CH3 H CH3 V