Compound B has a molecular formula of C,H0. What is the Unsaturation Number (UN) or Double-Bond Equivalent (DBE)? UN/DBE: Based on the UN/DBE you calculated, could there be a double bond in compound B? yes no Based on the UN/DBE you calculated, could there be a ring in compound B? yes no Based on the molecular formula and the UN/DBE you calculated, check all the functional groups that could be present in compound B. O ketone benzene ring ester alkyne O alcohol aldehyde O carboxylic acid O alkene nitrile O amine epoxide I ether O ring Examine the IR spectrum provided for compound B. The peaks below 1500 cannot be used to make any structural assignments because they are in the fingerprint region. There are the two important peaks in this IR spectrum: peak 1 which is 3400 cm-1, and peak 2 which is 2950 cm-1. What is peak 1 most likely due to? What is peak 2 most likely due to? О-Hor N-H O C-O or N-O O C-H (sp) O C=0 O C-H (sp³) O C-H (sp') O O-H or N-H O C-H (sp³) OC-H (sp³) O C=0 OC-O or N-0 ОС-Н (sp) O O O O O O

Check the box under each structure in the table that is an enantiomer of the molecule shown below. If none of them are, check the none of the above box under the table. Br OH CI Molecule 1 Molecule 2 Molecule 3 CIM HO CI HO Br Br 'Br CI HO Molecule 4 Molecule 5 Molecule 6 CI CI OH Br CI Br OH HO"*** Br none of the above

Check the box under each structure in the table that is an enantiomer of the molecule shown below. If none of them are, check the none of the above box under the table. C H Br Molecule 1 Br H OH Molecule 4 CI CI "H Br Onone of the above Molecule 2 HET CI 0 Molecule 5 Br Br CI H Molecule 3 H 100 CI n Molecule 6 H Br Br 0 CI X Ś

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

From the molecule C7H13N, draw (IF YOU CAN): a)constitutional isomer that has one quarternary carbon b) constitutional isomer that has one tertiary carbon c) constitutional isomer that has only primary and secondary carbons d) constitutional isomer that has one asymmetric carbon

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. OH O || HỌ—CH2—CH—CH HỌ—CH2 -CH₂-OH none of the above OH H-C- CH-C-H C1O CH3 O CH3-CH-C-CH₂-OH X 5

Check the box under each structure in the table that is an enantiomer of the molecule shown below. If none of them are, check the none of the above box under the table. CI ***OH H Molecule 1 H HO". HO" H Molecule 4 Br 0 CI none of the above Molecule 2 Br H OH 0 Molecule 5 Br Jo OH H 0 Molecule 3 HO H Molecule 6 Cl OH C/*** H U X Ś