4. Isomerism
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GENERAL ORGANIC CHEMISTRY

232235 The configurations of the chiral centres in $A$ and $B$ are, respectively, as
original image

1 R and $\mathrm{S}$
2 $\mathrm{S}$ and $\mathrm{R}$
3 R and $\mathrm{R}$
4 $\mathrm{S}$ and $\mathrm{S}$
UPTU/ UPSEE-2011
GENERAL ORGANIC CHEMISTRY

232236 The compound which does not exhibit geometrical isomerism, is

1 $\mathrm{CH}_{3} \mathrm{CH}=\mathrm{CHCOOH}$
2 $\mathrm{Br}-\mathrm{CH}=\mathrm{CH}-\mathrm{Br}$
3 $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}=\mathrm{NOH}$
4 original image
UPTU/ UPSEE-2010
GENERAL ORGANIC CHEMISTRY

232237 The chirality of the compound
original image

1 $\mathrm{R}$
2 $\mathrm{S}$
3 $\mathrm{Z}$
4 $E$
UPTU/ UPSEE-2010
GENERAL ORGANIC CHEMISTRY

232241 The following compound differ in
original image

1 configuration
2 conformation
3 structure
4 chirality
UPTU/ UPSEE-2009
GENERAL ORGANIC CHEMISTRY

232243 Example of geometrical isomerism is

1 2-butanol- $\mathrm{CH}_{3}-\mathrm{CH}_{2}-\mathrm{CH}_{2}-\mathrm{CH}_{2}$-OH. It does not have restricted rotation around double bond.
2 2-butene-
original image
It show geometrical isomerism
3 butanal- original image It also does not have restricted
rotation
4 2 butyne- $\mathrm{CH}_{3}-\mathrm{C} \equiv \mathrm{C}-\mathrm{CH}_{3}$ It has triple bond so it
does not show geometrical isomer
UPTU/ UPSEE-2009
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GENERAL ORGANIC CHEMISTRY

232235 The configurations of the chiral centres in $A$ and $B$ are, respectively, as
original image

1 R and $\mathrm{S}$
2 $\mathrm{S}$ and $\mathrm{R}$
3 R and $\mathrm{R}$
4 $\mathrm{S}$ and $\mathrm{S}$
UPTU/ UPSEE-2011
GENERAL ORGANIC CHEMISTRY

232236 The compound which does not exhibit geometrical isomerism, is

1 $\mathrm{CH}_{3} \mathrm{CH}=\mathrm{CHCOOH}$
2 $\mathrm{Br}-\mathrm{CH}=\mathrm{CH}-\mathrm{Br}$
3 $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}=\mathrm{NOH}$
4 original image
UPTU/ UPSEE-2010
GENERAL ORGANIC CHEMISTRY

232237 The chirality of the compound
original image

1 $\mathrm{R}$
2 $\mathrm{S}$
3 $\mathrm{Z}$
4 $E$
UPTU/ UPSEE-2010
GENERAL ORGANIC CHEMISTRY

232241 The following compound differ in
original image

1 configuration
2 conformation
3 structure
4 chirality
UPTU/ UPSEE-2009
GENERAL ORGANIC CHEMISTRY

232243 Example of geometrical isomerism is

1 2-butanol- $\mathrm{CH}_{3}-\mathrm{CH}_{2}-\mathrm{CH}_{2}-\mathrm{CH}_{2}$-OH. It does not have restricted rotation around double bond.
2 2-butene-
original image
It show geometrical isomerism
3 butanal- original image It also does not have restricted
rotation
4 2 butyne- $\mathrm{CH}_{3}-\mathrm{C} \equiv \mathrm{C}-\mathrm{CH}_{3}$ It has triple bond so it
does not show geometrical isomer
UPTU/ UPSEE-2009
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GENERAL ORGANIC CHEMISTRY

232235 The configurations of the chiral centres in $A$ and $B$ are, respectively, as
original image

1 R and $\mathrm{S}$
2 $\mathrm{S}$ and $\mathrm{R}$
3 R and $\mathrm{R}$
4 $\mathrm{S}$ and $\mathrm{S}$
UPTU/ UPSEE-2011
GENERAL ORGANIC CHEMISTRY

232236 The compound which does not exhibit geometrical isomerism, is

1 $\mathrm{CH}_{3} \mathrm{CH}=\mathrm{CHCOOH}$
2 $\mathrm{Br}-\mathrm{CH}=\mathrm{CH}-\mathrm{Br}$
3 $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}=\mathrm{NOH}$
4 original image
UPTU/ UPSEE-2010
GENERAL ORGANIC CHEMISTRY

232237 The chirality of the compound
original image

1 $\mathrm{R}$
2 $\mathrm{S}$
3 $\mathrm{Z}$
4 $E$
UPTU/ UPSEE-2010
GENERAL ORGANIC CHEMISTRY

232241 The following compound differ in
original image

1 configuration
2 conformation
3 structure
4 chirality
UPTU/ UPSEE-2009
GENERAL ORGANIC CHEMISTRY

232243 Example of geometrical isomerism is

1 2-butanol- $\mathrm{CH}_{3}-\mathrm{CH}_{2}-\mathrm{CH}_{2}-\mathrm{CH}_{2}$-OH. It does not have restricted rotation around double bond.
2 2-butene-
original image
It show geometrical isomerism
3 butanal- original image It also does not have restricted
rotation
4 2 butyne- $\mathrm{CH}_{3}-\mathrm{C} \equiv \mathrm{C}-\mathrm{CH}_{3}$ It has triple bond so it
does not show geometrical isomer
UPTU/ UPSEE-2009
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GENERAL ORGANIC CHEMISTRY

232235 The configurations of the chiral centres in $A$ and $B$ are, respectively, as
original image

1 R and $\mathrm{S}$
2 $\mathrm{S}$ and $\mathrm{R}$
3 R and $\mathrm{R}$
4 $\mathrm{S}$ and $\mathrm{S}$
UPTU/ UPSEE-2011
GENERAL ORGANIC CHEMISTRY

232236 The compound which does not exhibit geometrical isomerism, is

1 $\mathrm{CH}_{3} \mathrm{CH}=\mathrm{CHCOOH}$
2 $\mathrm{Br}-\mathrm{CH}=\mathrm{CH}-\mathrm{Br}$
3 $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}=\mathrm{NOH}$
4 original image
UPTU/ UPSEE-2010
GENERAL ORGANIC CHEMISTRY

232237 The chirality of the compound
original image

1 $\mathrm{R}$
2 $\mathrm{S}$
3 $\mathrm{Z}$
4 $E$
UPTU/ UPSEE-2010
GENERAL ORGANIC CHEMISTRY

232241 The following compound differ in
original image

1 configuration
2 conformation
3 structure
4 chirality
UPTU/ UPSEE-2009
GENERAL ORGANIC CHEMISTRY

232243 Example of geometrical isomerism is

1 2-butanol- $\mathrm{CH}_{3}-\mathrm{CH}_{2}-\mathrm{CH}_{2}-\mathrm{CH}_{2}$-OH. It does not have restricted rotation around double bond.
2 2-butene-
original image
It show geometrical isomerism
3 butanal- original image It also does not have restricted
rotation
4 2 butyne- $\mathrm{CH}_{3}-\mathrm{C} \equiv \mathrm{C}-\mathrm{CH}_{3}$ It has triple bond so it
does not show geometrical isomer
UPTU/ UPSEE-2009
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GENERAL ORGANIC CHEMISTRY

232235 The configurations of the chiral centres in $A$ and $B$ are, respectively, as
original image

1 R and $\mathrm{S}$
2 $\mathrm{S}$ and $\mathrm{R}$
3 R and $\mathrm{R}$
4 $\mathrm{S}$ and $\mathrm{S}$
UPTU/ UPSEE-2011
GENERAL ORGANIC CHEMISTRY

232236 The compound which does not exhibit geometrical isomerism, is

1 $\mathrm{CH}_{3} \mathrm{CH}=\mathrm{CHCOOH}$
2 $\mathrm{Br}-\mathrm{CH}=\mathrm{CH}-\mathrm{Br}$
3 $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}=\mathrm{NOH}$
4 original image
UPTU/ UPSEE-2010
GENERAL ORGANIC CHEMISTRY

232237 The chirality of the compound
original image

1 $\mathrm{R}$
2 $\mathrm{S}$
3 $\mathrm{Z}$
4 $E$
UPTU/ UPSEE-2010
GENERAL ORGANIC CHEMISTRY

232241 The following compound differ in
original image

1 configuration
2 conformation
3 structure
4 chirality
UPTU/ UPSEE-2009
GENERAL ORGANIC CHEMISTRY

232243 Example of geometrical isomerism is

1 2-butanol- $\mathrm{CH}_{3}-\mathrm{CH}_{2}-\mathrm{CH}_{2}-\mathrm{CH}_{2}$-OH. It does not have restricted rotation around double bond.
2 2-butene-
original image
It show geometrical isomerism
3 butanal- original image It also does not have restricted
rotation
4 2 butyne- $\mathrm{CH}_{3}-\mathrm{C} \equiv \mathrm{C}-\mathrm{CH}_{3}$ It has triple bond so it
does not show geometrical isomer
UPTU/ UPSEE-2009