Exam 2 03-27-02

Exam 2 03-27-02 - - CHEM 2370 Dr. S. A. Dandekar March...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
CHEM 2370 Exam 2 (100 points) Dr. S. A. Dandekar March 27'", 2002 - Name ?, . Select the best answer from the given choices for ANY 30 of questions 1-32. 1. 1.- 1,3 -Dibromocyclohexane is represented by structure(s). Br 4- *- I I I 111 8 a. I b. I1 c. TI1 d. I1 and I11 e. I and I1 +- -- I8 : .: 2. The rnosi-stable 1- - iqonformation of 1,2-d~phepylethane ,, is. a. T , . b. I1 - . , -- :- . (- , ' ' ; . - ! c. I11 I c- '. "d. TV . . . f I r ., e. V , '1 1 3. The rnost stable conformation of trans-1-Wt-butyl-3-methylcyclohexane is the one in which: ; ,. ' . , a. the mt-butyl group is axial and the methyl group is . - :/. . . \ equatorial. '-."/ \I b. the methyl group is axial and the et-butyl group is equatorial. c. both groups are axial. \ d. both groups are equatorial. i e. the twist boat conformation is adopted. nr <,. *,. . -. .;a .., '3 . - .# __ -.-- i' / ,:,'. -.. I 4. Which isorner would have the largest heat of cornbustion? . cc' . . 1 a. Propylcyclopropane - ---. . --- \ r .-J----z I .- , J,,%, b. Ethylcyclobutane .tr < < . - . - '.. %, c. Methylcyclopentane I / ! '.,. . . . . d. Cyclohexane (2 , - 1 . . . Y) q \./" e. Since they are all isomers, all would have the same heat of combustion.
Background image of page 1

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

View Full DocumentRight Arrow Icon
5. Which of these C1" H18 isomers is predicted to be the most - stable? 6. Which molecule has a plane of symmetry? d. More than one of these - e. None of these 7. Chiral molecules are represented by: N a. I, 11, 111, 1V and V b. I, 11, 111 and IV c.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This test prep was uploaded on 04/14/2008 for the course CHEM 2370 taught by Professor Dandekar during the Fall '07 term at North Texas.

Page1 / 10

Exam 2 03-27-02 - - CHEM 2370 Dr. S. A. Dandekar March...

This preview shows document pages 1 - 3. Sign up to view the full document.

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