Concept explainers
a) CH3CH=CH2
Interpretation:
Can CH3CH=CH2 exist as pairs of cis-trans isomer is to be stated. If so, the structures of cis-trans pair are to be drawn indicating their geometry.
Concept introduction:
The lack of rotation around carbon-carbon double bonds leads to cis-trans isomerism. The requirement is that both the carbons in double bond should be bonded to different substituents. Compounds that have one of their doubly bonded carbons bonded to identical substituents cannot exist as cis-trans isomers.
To change:
Whether CH3CH=CH2 can exist as a pair of cis-trans isomers and to draw their structures with the geometry.
b) (CH3)2C=CHCH3
Interpretation:
Can (CH3)2C=CHCH3 exist as pairs of cis-trans isomer is to be stated. If so, the structures of cis-trans pair are to be drawn indicating their geometry.
Concept introduction:
The lack of rotation around carbon-carbon double bonds leads to cis-trans isomerism. The requirement is that both the carbons in double bond should be bonded to different substituents. Compounds that have one of their doubly bonded carbons bonded to identical substituents cannot exist as cis-trans isomers.
To change:
Whether (CH3)2C=CHCH3 can exist as a pair of cis-trans isomers and to draw their structures with the geometry.
c) CH3CH2CH=CHCH3
Interpretation:
Can CH3CH2CH=CHCH3 exist as pairs of cis-trans isomer is to be stated. If so, the structures of cis-trans pair are to be drawn indicating their geometry.
Concept introduction:
The lack of rotation around carbon-carbon double bonds leads to cis-trans isomerism. The requirement is that both the carbons in double bond should be bonded to different substituents. Compounds that have one of their doubly bonded carbons bonded to identical substituents cannot exist as cis-trans isomers.
To state:
Whether CH3CH2CH=CHCH3 can exist as a pair of cis-trans isomers and to draw their structures with the geometry.
d) (CH3)2C=C(CH3)CH2CH3
Interpretation:
Can (CH3)2C=C(CH3)CH2CH3 exist as pairs of cis-trans isomer is to be stated. If so, the structures of cis-trans pair are to be drawn indicating their geometry.
Concept introduction:
The lack of rotation around carbon-carbon double bonds leads to cis-trans isomerism. The requirement is that both the carbons in double bond should be bonded to different substituents. Compounds that have one of their doubly bonded carbons bonded to identical substituents cannot exist as cis-trans isomers.
To state:
Whether (CH3)2C=C(CH3)CH2CH3 can exist as a pair of cis-trans isomers and to draw their structures with the geometry.
e) ClCH=CHCl
Interpretation:
Can ClCH=CHCl exist as pairs of cis-trans isomer is to be stated. If so, the structures of cis-trans pair are to be drawn indicating their geometry.
Concept introduction:
The lack of rotation around carbon-carbon double bonds leads to cis-trans isomerism. The requirement is that both the carbons in double bond should be bonded to different substituents. Compounds that have one of their doubly bonded carbons bonded to identical substituents cannot exist as cis-trans isomers.
To state:
Whether ClCH=CHCl can exist as a pair of cis-trans isomers and to draw their structures with the geometry.
f) BrCH=CHCl
Interpretation:
Can BrCH=CHCl exist as pairs of cis-trans isomer is to be stated. If so, the structures of cis-trans pair are to be drawn indicating their geometry.
Concept introduction:
The lack of rotation around carbon-carbon double bonds leads to cis-trans isomerism. The requirement is that both the carbons in double bond should be bonded to different substituents. Compounds that have one of their doubly bonded carbons bonded to identical substituents cannot exist as cis-trans isomers.
To state:
Whether BrCH=CHCl can exist as a pair of cis-trans isomers and to draw their structures with the geometry.
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Chapter 7 Solutions
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