Exam2- C Key

Exam2- C Key - Exam 2 Form C 1. B 2. B 3. C 4. D 5. C 6. D...

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Exam 2 – Form C 1. B 2. B 3. C 4. D 5. C 6. D 7. D 8. C 9. A 10. D 11. B 12. B 13. E 14. C 15. E 16. A 17. C 18. C 19. D 20. B 21. A 22. D 23. a) b) SC S OS e O O SP = 1 / 2 (24-16) = 4 SP = 1 / 2 (32-26) = 3 c) CS 2 yes S e O 3 2 no d) CS bond order in CS 2 2 S e O b o n d o r d e r i n S e O 3 2 1 e) (2 each) How many sigma bonds are in CS 2 2 S e O 3 2 3 f) (2 each) How many pi bonds are in CS 2 2 S e O 3 2 0 g) (2 each) What is/are the bond angle(s) in CS 2 180 o S e O 3 2 109 o h) CS 2 linear SeO 3 2 trigonal pyramidal i) C in CS 2 sp S e i n S e O 3 2 sp 3
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For the first nine questions, consider this molecule. (Note: All atoms obey the octet rule. Lone pairs have not been shown, but must be considered when answering these questions.) C C C C C C C O H C H C H C N H C H H O H H H H H 1 2 3 4 5 6 7 8 9 1. What are the bond angles at carbon #8? A ) 9 0 o B) 109 o C ) 1 2 0 o D) 180 o 2. What is the hybridization at carbon #2? A ) s p B ) s p 2 C) sp 3 D) sp 4 3. What is the shape at carbon #3? A ) l i n e a r B ) b e n t C ) t r i g o n a l p l a n a r D ) t r i g o n a l pyramidal E) tetrahedral 4. What is the bond angle at carbon #6? A ) 9 0 o B) 109 o C ) 1 2 0 o D) 180 o 5. What is the hybridization at oxygen #9? A ) s p B ) s p 2 3 D) sp 4 6. What is the shape at nitrogen #7? A ) l i n e a r B ) b e n t C ) t r i g o n a l p l a n a r D ) t r i g o n a l pyramidal E) tetrahedral 7. How many pi bonds exist in this molecule? A ) 3 B ) 4 C ) 5 D ) 6 E ) 7 8. What is the bond order of the bond between carbon #2 and carbon #3? A ) 1 B ) 1 . 3 3 C ) 1 . 5 D ) 2 E ) 3 9. What is the bond order of the bond between carbon #8 and oxygen #9?
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This note was uploaded on 03/19/2012 for the course CH 101 taught by Professor Bigham during the Spring '08 term at N.C. State.

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Exam2- C Key - Exam 2 Form C 1. B 2. B 3. C 4. D 5. C 6. D...

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