The degree of unsaturation, or index of hydrogen deficiency, is the number of pi bonds plus rings in a molecule. Specify the degree of unsaturation (index of hydrogen deficiency) of the following formulas: (a) C23H28 (b) CgH¿Cl (c) C3H¬N[

Give the systematic name for each of the following; (b) (a) (d) CH3 I CH3-C-CH2-CH3 I CH3 CH3 CH3-CH2-CH-CH=CH2 CH3 I CH3-CH₂-CH-CH-CH3 I CH₂ I CH3 (e) (c) CH3 I CH3-CH₂-CH=C-CH-CH3 I CH3 -CH3 CH₂CH3

'' Which of the statements A-E is NOT correct about azidothymidine (AZT), an antiviral drug? (a) The molecule contains a sigma bond formed by the overlap of a nitrogen sp orbital with a nitrogen sp2 H3C. NH orbital (b) It contains a secondary (2°) amine (c) It contains a primary (1°) alcohol (d) The molecule contains the following functional groups: alkene, amide, ether (e) It contains one atom with a +1 formal charge and one with a -1 formal charge HOH2C N=N=N

[1] [2] H2O Н,О

The bonding between the carbon and oxygen in a ketone can be described as C(sp2)-0(sp²), o-bond and C(p)-O(p), л-bond. How would you describe the bonding between carbon and oxygen in a ketene? Sketch the orbitals used to make the bonds in the ketene. H a ketene

Draw a structural formula for a hydrocarbon with the given molecular formula that undergoes hydroboration-oxidation to give the indicated product. (a) (b) • All hydrogen atoms are implied. Apply formal charges where appropriate. • Omit lone pairs and radical electrons from your answer. ● CH10 1. (sia) BH 2. H₂O₂, NaOH [TAYY 1. BH3 CH12 2. H₂O₂, NaOH MATEL Н Ⓡ Sn [F ChemDoodle ? OH Sn [F ?