isomerism? (A) CH3C=CCH3 (B) Он ОН (C) (C) (CH3)2C=CHCI (D) CH3CH-C=CHCH3 23. Which molecules are optically active (chiral)? CH3 ..N. CH2CH3 H. C=C=C Cl Но CH3 Н н CH3 II III (A) I, II, III (B) II and III only (C) III only (D) II only 24. Which would form a racemic mixture upon hydrogenation of the double bond with H/Pt? (A) C,H5-CH=c-C,H5 CH3 (B) C,H5-CH=CH-C,Hs T. CH.

Organic Chemistry
9th Edition
ISBN:9781305080485
Author:John E. McMurry
Publisher:John E. McMurry
Chapter5: Stereochemistry At Tetrahedral Centers
Section5.SE: Something Extra
Problem 74AP: cis-1,2-Dimethylcyclohexane is optically inactive even though it has two chirality centers. Explain.
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Which molecules are optically active? Question 23

isomerism?
(A) CH3C=CCH3
(B)
Он
ОН
(C)
(C) (CH3)2C=CHCI
(D) CH3CH-C=CHCH3
23. Which molecules are optically active (chiral)?
CH3
..N.
CH2CH3
H.
C=C=C
Cl
Но
CH3
Н
н
CH3
II
III
(A) I, II, III
(B) II and III only
(C) III only
(D) II only
24. Which would form a racemic mixture upon
hydrogenation of the double bond with H/Pt?
(A) C,H5-CH=c-C,H5
CH3
(B) C,H5-CH=CH-C,Hs
T.
CH.
Transcribed Image Text:isomerism? (A) CH3C=CCH3 (B) Он ОН (C) (C) (CH3)2C=CHCI (D) CH3CH-C=CHCH3 23. Which molecules are optically active (chiral)? CH3 ..N. CH2CH3 H. C=C=C Cl Но CH3 Н н CH3 II III (A) I, II, III (B) II and III only (C) III only (D) II only 24. Which would form a racemic mixture upon hydrogenation of the double bond with H/Pt? (A) C,H5-CH=c-C,H5 CH3 (B) C,H5-CH=CH-C,Hs T. CH.
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