sample Quiz1-F07 - : sp 2 + sp 2 " : p + p...

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Chemistry 2521 Fall 2007 Quiz 1 (25 points) Printed Name ( Last , First) ______________________________________________________ Good Luck!
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1 . (2) What is an approximate C-C-C bond angle in propyne, CH 3 C CH (circle correct answer): 109.5 o 180 o 160 o 140 o 120 o 90 o 60 o 2 . (3) What is hybridization of the carbon and nitrogen atoms of acetonitrile, CH 3 CN? Place correct answers in each box (1 pt each): 3 . (2) Which atomic orbitals overlap to form the carbon-oxygen σ bond and π bond of formaldehyde, H 2 C=O (circle correct answer): ! : sp 3 + sp 3 ! : sp 2 + sp 2 ! : sp 2 + sp 2 ! : sp 3 + sp 3 " : p + p "
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Unformatted text preview: : sp 2 + sp 2 " : p + p " : sp 2 + sp 2 (a) (b) (c) (d) 4. (2) Circle the structure of the compound that has dipole moment = 0 D : CH 3 OH NH 3 H 2 O CHCl 3 CH 2 Cl 2 CCl 4 5. (6) Write molecular formulas for each of the following skeletal structures (2 pts each): OH O OH C N (write correct molecular formula C x H y O z or C x H y N z in box under each structure) 6. (10 pts) Place correct formal charges on atoms by writing 0, , or + in each circle (1 pt each): H N N N: .. .. H 3 C C N O: .. .. H 2 C N O: O: .. .. .. .. Overall Score: ____________ C C N: H H H...
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This note was uploaded on 09/11/2008 for the course CHEM 2541 taught by Professor Dr.viktorv.zhdankin during the Spring '08 term at University of Minnesota Duluth.

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sample Quiz1-F07 - : sp 2 + sp 2 " : p + p...

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