QUESTION 17 Which of the following compounds contain an ester functional group? TV II IN III IV Both I & IV QUESTION 18 What are the hybridization state, molecular geometry and approximate bond angle for methyl cation, CH3? sp. tetrahedral, 1090 sp2, trigonal planar, 1200 sp?, tetrahedral, 109.50 spy, trigonal pyramidal, 1200 sp?, trigonal pyramidal, 1800 QUESTION 19 The lone pair of electrons in the methyl anion, CH3. resides in which orbitals? $2 sp $03