Check the box under each compound that exists as a pair of mirror-image twins. If none of them do, check the none of the above box under the table. CH3 CH3 CH₂ CH-OH OH CH3 CH₂ C-CH3 CH3 none of the above CH3 CH₂1 OH CH3 C-OH CH3 CH3 CH-CH₂-OH X

Check all of the compounds in the list below that are constitutional (structural) isomers of each other. О Н +н Н H Н Н H С. C H # -Н Н H Н Н Н Н Н- Н Н C Н Н Н Н te Н OH Н None of the Above Н H Н H

Check the box under each compound that exists as a pair of mirror-image twins. If none of them do, check the none of the above box under the table. CH3 CH3 C CH₂ -CH-CH3 OH OH CH3 OH CH3 CH-CH-CH₂-CH3 none of the above CH3 CH3 C OH OH OH CH₂ C CH3 HỌ—CH—CH, -CH-OH ㅎ_ㅎ CH3 OH X

Check the box under each compound that exists as a pair of mirror-image twins. If none of them do, check the none of the above box under the table. CH3 O || H₂N-CH C- OH CH3 O H₂N-C- -C- -ОН OH none of the above HO i C-CH₂ C-OH IN-8-CH₂_0_0H ОН X

Check the box under each molecule in the table below that is an isomer of this molecule: HO If there are no isomers, check the none of the above box under the table. Он Он none of the above но ОН Х б

Check the box under each molecule in the table below that is an isomer of this molecule: НО ОН If there are no isomers, check the none of the above box under the table. OH НО НО none of the above

Check the box under each molecule that has a total of two ß hydrogens. If none of the molecules fit this description, check the box underneath the table. HO. Br HO Br y None of these molecules have a total of two ẞ hydrogens. X

Inspect the structures shown below and select the correct statement. COƏH HN-C-H CH2 ÇOH H2N-C-H CH2 COH HN-C-H CH2 COH HN-C-H Он SH 1 2 4 O #1 and #4 have the S configuration, #2 and #3 have the R configuration. O All structures have the R configuration. O All structures have the S configuration. O #1, #2, and #4 have the S configuration and #3 has the R configuration. O #1 and #4 have the R configuration, #2 and #3 have the S configuration.