10. Which ONE of the following compounds contains a chiral center?A) 2,2-dichlorobutaneB) 1,2-dichlorobutaneC) 1,4-dichlorobutaneD) 2,2-dichloropentaneE) 1,3,5-trichloropentane

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Answered: 10. Which ONE of the following…

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

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Chapter21: Hydrocarbons

Section: Chapter Questions

Problem 94A

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Which of the following molecules can have enantiomers? Identify any chiral carbon atoms. a. b. c.
1. How many chiral carbon atoms are in the following compound? CHCIBRCH2CHBRCH3 a) 0 b) 1 c) 2 d) 3 4. Which of the following compounds will not show optical activity? a) CH2CICHBRCI b) CH;CH(OH)CH3 c) CH;CH2CHĆICH3 d) CH2(OH)CH(NH2)COOH 2. How many chiral carbon atoms are in the following compound? 5. Three of the following projection formulas are the same compound. The other is the enantiomer. Which is the enantiomer? CH2(OH)CH(OH)CH(OH)CH(OH)CH2OH CH,OH c=0 a) 1 b) 2 c) 3 d) 4 ОН Н H-C=0 a) НО -H 3. The maximum number of ČHHOH stereoisomers theoretically possible for the compound below is: b) H-C =0 -CH2OH CH2(OH)CH(OH)CH(OH)CH(OH)CHO c) CH2OH a) 8 b) 6 c) 16 d) 4 H. - OH d) H-C=0
Cortisone is a compound that is used as an anti-inflammatory drug to treat 2) diseases like arthritis. Cortisone is a steroid which contains four rings (A, B, C and D), and has the following structure: он "OH Cortisone Provide the data to complete each of the following statements: The total number of chiral carbons (stereocentres) in Cortisone is The maximum number of stereoisomers possible is: The degree of unsaturation (IHD) of Cortisone is The total number of 2° hydrogens is The ring fusion between rings B and C is trans or cis? The absolute configuration of the carbon with * in the structure is The total number of n bonds is
4. Label the chiral centers in the following molecules with an asterisk (* CH3 CH3 CH3 CH3- (- CH, CH3
How many chiral centers are in this compound? A) 3 B) 4 C) 5 D) 6
Which compounds contain chiral centers? a)2-chloropentane a)3-chloropentane a)3-chloro-1-pentane a)1,2-dichloropropane
Which objects are asymmetric (have no plane of symmetry): (a) a circular clock face; (b) a football; (c) a dime; (d) a brick; (e) a hammer; (f) a spring?
2-bromopentane is an optically active compound. Draw the two possible structures of optical isomer and label the chiral center with an asterisk (*) in each of the optical isomer structure.
c) For the following compound identify how many chiral carbons present and how many isomers are possible. HO C4H6NOF OH OH d) Figure out elements of unsaturation for the following compound
9. Which one of the following hydrocarbons does NOT have a chiral carbon? ایک ہے ل A B C D E
10) Which of the following compounds are not chiral? A) 2,3-dibromobutane B) 1,3-dibromobutane C) 1,2-dichlorobutane D) 1,4-dibromobutane E) 1-bromo-2-chlorobutane
Label the following pairs as A) distereoisomers, B) enantiomers, C) conformers, or D) the same. b1 c1 d1 e1 a2 b2 c2 The structures above are labeled a1, a2, b1, b2 ...etc. Using these labels, indicate which compounds above would have an optical rotation of

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10. Which ONE of the following compounds contains a chiral center? A) 2,2-dichlorobutane B) 1,2-dichlorobutane C) 1,4-dichlorobutane D) 2,2-dichloropentane E) 1,3,5-trichloropentane