H07- MO Theory - gonzales (pag757) H07: MO Theory McCord...

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Unformatted text preview: gonzales (pag757) H07: MO Theory McCord (53130) 1 This print-out should have 19 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. 001 10.0 points A sigma bond 1. is composed of non-bonding orbitals. 2. is always polar. 3. may exist alone or in conjunction with a pi bond. 4. always exists in conjunction with a pi bond. 5. stems from sp hybridization of orbitals. 002 10.0 points In a new compound, it is found that the cen- tral carbon atom is sp 2 hybridized. This implies that 1. carbon has four regions of high electron density. 2. carbon has a tetrahedral electronic geom- etry. 3. carbon has four sigma bonds. 4. carbon has four lone pairs of electrons. 5. carbon is also involved in a pi bond. 003 10.0 points In the molecule, C 2 H 4 , what are the atomic orbitals that participate in forming the sigma bond between the C and H atoms? 1. H: 1 s and C: 2 p 2. H: sp 2 and C: sp 2 3. H: 2 p and C: sp 3 4. H: 1 s and C: sp 5. H: 1 s and C: sp 2 004 (part 1 of 4) 10.0 points Draw the Lewis structure for the following hydrocarbon molecule. The carbons are num- bered one to four starting with the far left...
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This note was uploaded on 10/28/2009 for the course CH 53130 taught by Professor Mccord during the Fall '09 term at University of Texas at Austin.

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H07- MO Theory - gonzales (pag757) H07: MO Theory McCord...

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