15-Which of the following are the correet relative priorities in the R/S system?

Question

15-Which of the following are the correet relative priorities in the R/S system?) b au bromine >ethyl > hydrogen >methyl bromine > cthyl> methyl> hydrogen c hydrogen > methyl> ethyl> bromine d ethyl> methyl>hydrogen> bromine e ethyl> methyl bromine > hydrogen 16-Non-isomers aa-Compounds that do not have the same molecular formula b. Compounds that have the same molecular formula c-Compounds that have the same emperical formula d-Compounds that do not have the same mirror image. 17- For a carbon atom to exhibit chirality, what feature must it possess? A- Be attached to an oxygen atom B- Be attached t a highly electronegative atom such as flurine, oxygen or nitrogen cC- Have four different groups attached to it D- Have a multiple bond attached to it E- Have a non-rotating C-C double bond 18-Achiral aa-A molecule is achiral if it is superposable on its mirror image. b-A molecule is achiral if it is nonsuperposable on its mirror image. c-A molecule is achiral if it is diasteroisomer on its mirror image. d-A molecule is achiral if it is in cis and trans on its mirror image. 19-The compound is a racemic mixture of enantiomers if a-mixture of stereoisomers bb- mixture of R and S of the same compound c-Mixture of superimposible compound d-Mixture of achiral molecules 20-Which of the following statements must be true for two pure chiral isomers ? aA) they must be enantiomers C) they must be stereoisomers B) they must be diastereomers D) they must be optically active e-a and d 21-The two molecules represented below are examples of CHi CH2 O CH2 CHj& CH3 CH2CH CH2 OH A. isotopes. bB. isomers. C. alcohols. D. carboxylic acids. 22-Which of the carbon atoms labeled in the molecule below are chiral? E. unsaturated hydrocart

Explanation / Answer

15. a is correct option

16. a is correct option.

17. c is correct option.

18. a is correct option.

19. b is correct option.

20. d is correct option

21. b is correct option

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