CHEM 343 Quiz 2 1 Which of the following is an accurate depiction of the antibonding orbital in Br 2 a b c d 2 Put the following bonds in order of increasing energy lowest to highest CO CBr CF CS a CS CO CBr CF b CF CO CS CBr c CF CO CBr CS d CBr CS CO CF 3 Consider the bonds shown below and select the correct statement from the following H O H N H Cl H C a HCl would have the lowest energy bond and therefore be hardest to break b HC would have the highest energy and therefore be hardest to break c HN would have the highest energy and therefore be hardest to break d HO would have the lowest energy and therefore be hardest to break 4 Consider the molecule shown below and select the correct statement from the following O1 H OH 2 a The highest energy non bonding electrons surround oxygen 2 b The highest energy bond is the C C bond c The highest energy antibonding orbital is OH d The lowest energy bond is the OH bond 5 Which of the following is an accurate depiction of the CC bond in ethene a b c d 6 Consider the reaction shown below and select the correct statement from the following O O Nu Nu a The electrons from the nucleophile populate CO causing the CO bond to break b The electrons from the nucleophile populate CO causing the CO bond to break c The electrons from the nucleophile populate CO causing the CO bond to break d The electrons from the nucleophile populate CO causing the CO bond to break 7 How many nodes are present in the highest energy filled orbital in the molecule shown below a 0 b 2 c 3 d 5 8 Which of the following is an accurate depiction of the CO orbital in formaldehyde a C2p c b O2p O2p C2p C2p d C2p O2p O2p 9 Consider the two reaction pathways below and select the correct statement Pathway 2 Pathway 1 Nu Cl Br Nu Cl Br Nu Br Cl Nu Br Cl a Pathway 1 is more likely because is closer in energy to Cl and the ClBr electrons are closer in energy to Br b Pathway 2 is more likely because is closer in energy to Br and the ClBr electrons are closer in energy to Cl c Pathway 1 is more likely because is closer in energy to Br and the ClBr electrons are closer in energy to Cl d Pathway 2 is more likely because is closer in energy to Cl and the ClBr electrons are closer in energy to Br 10 Which of the orbitals below is highest in energy a b c d