Homework_6,Pt2(Q)

Homework_6,Pt2(Q) - # MO delocalized over the C's 6. In CO...

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HOMEWORK#6, Part 2 1. What would the valence bond model predict for the valence of C without "promotion" or "hybridization"? a. 0 b. 1 c. 2 d. 3 e. 4 2. What do you predict for the hybridization of the central atom in CCl 3 ? a. sp 3 d b. sp 3 c. sp 2 d. sp e. sp 3 d 2 3. No question 4. In the molecule, H–C ! N, the valence bond model would predict how many " and # bonds? a. 1 " and 2 # b. 2 " and 2 # c. 2 " and 1 # d. 1 " and 1 # e. 1 " and 3 # 5. A Lewis dot structure for benzene, C 6 H 6 would give two equivalent resonance structures for this cyclic molecule with alternating single and double bonds A combined VB and MO picture for the bonding of the carbon atoms in benzene would be a. 3 " (C2p–C2p) bonds between each C atom b. 2 " (Csp 3 –Csp 3 ) bonds between each C atom, and 1 # MO delocalized over the C's c. 1 " (Csp 3 –Csp 3 ) bond between each C atom, and 1 # MO delocalized over the C's d. 1 " (Csp 2 –Csp 2 ) bond between each C atom, and 2 # MO delocalized over the C's e. 1 " (Csp 2 –Csp 2 ) bond between each C atom, and 3
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Unformatted text preview: # MO delocalized over the C's 6. In CO 2 the hybridization of the C atom is a. sp 3 d b. sp c. sp 2 d. sp 3 e. sp 3 d 2 7. Which hybridization is associated with a trigonal planar geometry? a. sp b. sp 2 c. sp 3 d. sp 3 d e. sp 3 d 2 8. In benzene (C 6 H 6 ) the number of electrons in delocalized # orbitals is a. 0 b. 2 c. 4 d. 6 e. 18 10. The hybridization of the B atom in anion BH 4-is a. sp b. sp 2 c. sp 3 d. sp 4 e. none of the above. 11. What is the hybridization of the B atom before and after the following reaction? BF 3 + NH 3 $ F 3 B-NH 3 a. sp 2 (before) $ sp 3 (after) b. sp 2 (before) $ sp 2 (after) c. sp 3 (before) $ sp 2 (after) d. sp 3 (before) $ sp 3 (after) e. sp (before) $ sp 2 (after) 12. For the molecular orbital diagram of methane shown below, how many electrons are in bonding orbitals, nonbonding orbitals and antibonding orbitals? C 4H 2p 2s a. 2,6,0 b. 8,0,0 c. 1,3,0 d. 1,3,4 e. 2,6,4...
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Homework_6,Pt2(Q) - # MO delocalized over the C's 6. In CO...

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