a. Which of the following statements concerning a pair of geometrical isomers are correct? (1) They have different boiling points and melting points. (2) They have the same relative molecular mass. (3) Their atoms are joined in the same order. A. (1) and (2) only B. (1) and (3) only C. (2) and (3) only D. (1), (2) and (3) b. Which of the following statements concerning enantiomers is INCORRECT? A. If a pair of enantiomers is present in the same amount, the mixture is optically inactive. B. A pair of enantiomers has the same melting point. C. There is at least one plane of symmetry in the molecules of enantiomers. D. A pair of enantiomers has the same molecular formula.
a. Which of the following statements concerning a pair of geometrical isomers are correct? (1) They have different boiling points and melting points. (2) They have the same relative molecular mass. (3) Their atoms are joined in the same order. A. (1) and (2) only B. (1) and (3) only C. (2) and (3) only D. (1), (2) and (3) b. Which of the following statements concerning enantiomers is INCORRECT? A. If a pair of enantiomers is present in the same amount, the mixture is optically inactive. B. A pair of enantiomers has the same melting point. C. There is at least one plane of symmetry in the molecules of enantiomers. D. A pair of enantiomers has the same molecular formula.
Chemistry: Matter and Change
1st Edition
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Chapter21: Hydrocarbons
Section: Chapter Questions
Problem 73A
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a. Which of the following statements concerning a pair of geometrical isomers are correct?
(1) They have different boiling points and melting points.
(2) They have the same relative molecular mass.
(3) Their atoms are joined in the same order.
A. (1) and (2) only
B. (1) and (3) only
C. (2) and (3) only
D. (1), (2) and (3)
b. Which of the following statements concerning enantiomers is INCORRECT?
A. If a pair of enantiomers is present in the same amount, the mixture is optically inactive.
B. A pair of enantiomers has the same melting point.
C. There is at least one plane of symmetry in the molecules of enantiomers.
D. A pair of enantiomers has the same molecular formula.
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