308_exam_1_sp2008

308_exam_1_sp2008 - _ PRINT NAME 1. Consider the following...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
___________________________ PRINT NAME 308 EXAM I V1 SPRING 2008 1 1. Consider the following statements 1. The longest wavelength electronic transition in a ketone is n →π * 2. The lowest energy π →π *transition in 1,3-butadiene is at shorter wavelength than the lowest energy π →π *transition in 1,4-pentadiene. 3. The longer the conjugated system, the longer the wavelength of its lowest energy π →π *transition 4.The shortest wavelength electronic transition in an alcohol is a σ σ * A. Two are true B. Three are true C. One is true D. All are true E. None are true 2. Consider the following dienes in the Diels Alder reaction: 1. Cyclopentadiene, 2. trans,trans-2,4-hexadiene, 3. cis,trans-2.4-hexadiene. 4. cis,cis-2,4-hexadiene, 5. cis,cis-1,4-dichloro-1,3-butadiene The correct order of reactivity (most reactive first) is The correct order of reactivity (most reactive first) is A. 5,4,3,2,1 B. 1,2,3,4,5 C. 1,4,5,3,2 D. 5,3,1,2,4 E. 2,3,4,5,1
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
___________________________ PRINT NAME 308 EXAM I V1 SPRING 2008 2 3. 1) 2) 3) 4) Consider the following electrocyclic reactions CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 CH 3 Which occur(s) by a conrotatory process? A. None of them B. All of them C. Two of them D. One of them E. Three of them
Background image of page 2
___________________________ PRINT NAME 308 EXAM I V1 SPRING 2008 3 4. The “pi” electrons in the ground state of the allyl anion (CH 2 =CHCH 2 - ) are distributed as follows: A. Two in a bonding orbital and two in an antibonding orbital B. Two in a bonding orbital, one in a nonbonding orbital, and one in an antibonding orbital C. Two in each of two bonding orbitals
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 06/25/2009 for the course CHEM 160:308 taught by Professor Bokiess during the Spring '09 term at Rutgers.

Page1 / 11

308_exam_1_sp2008 - _ PRINT NAME 1. Consider the following...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online