Question

CHEM211-Summer 2019 Stereochemistry Part 2) Homework 4 1) What type of isomers are CH3CH2OCH3 and CH3CH CH2OH? constitutional B) symmetrical conformational C) configurational E) stereochemical CH сн What is the relationship between the following compounds? 2) HCCI and H CHCI CH constitutional isomers diastercomers superimposable without bond rotation B) enantiomers D) conformational isomers A) C) E) 3) What is the relationship between the structures shown below? diastercoma constitutional isomers conformational isomers sonfigurational isomers enantiomers A) B) and H Dr ни D) E) Br Br Which of the fellowing compounds is never chiral? 4) 2, 3-dibromobutane 1,3-dibromobutane 1, 2-dichlorobutane BY Cl 1,4-dibromobutane 1-bromo-2-chlorobutane OH OH 5) Mark the next molecules as chiral or achiral? CHy Which of the following compounds has an asymmetric center? 6) V. I rV CHy CHy- CH3 CHa Сн, H CH How many asymmetric centers are present in a molecule of 2,4,6-trimethylhept ane? D) 3 A) C B) 1 C) 2 E) 4 8) How many asymmetric centers are present in the next compound? CNCH A) B) 2 C)3 D)4 E)5 200 6
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Answer 1

5 all are aehiral 67 WTF S W T F M S SM T WT F S S M TWT FSSM TWTF 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 1 2 4 6 7