Question

NUM 55) How many stereogenic centers are present in the following compound County Name: it Name: A) 1 B) 2 ourse: D) 4 Section: 56) Which of the following molecules are achiral? Exam D) I, II A) I, IV B) II, III C) III, IV 57) Which of the following molecules are chiral? I. cis-1,3-Dibromocyclohexane II. 1-Bromo-1-methylcyclohexane III. trans-1-Bromo-3-methylcyclohexane IV. cis-1-Bromo-3-methylcyclohexane A) II, III B) III, IV C) 1, IV D) 1, 58) Which of the following statements is true? A) With one tetrahedral stereogenic center, a molecule may or may not be chiral. B) Chiral molecules usually contain a plane of symmetry. C) Achiral molecules usually contain a plane of symmetry. D) With two or more stereogenic centers, a molecule is always chiral. 59) 59) Which of the following molecules has a plane of symmetry? CH;BC1 CHBECIF CHCHCIBI CH-CH:CHBF IV D) IV III II B) II C) III А) І

Answer 1

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