231997
The number of geometrical isomers of $\mathrm{CH}_{3} \mathrm{CH}=\mathrm{CH}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}=\mathrm{CHCl}$ is
1 2
2 4
3 6
4 8
Explanation:
The given structure has three double bonds whose each carbon atom is differently substituted hence number of geometrical isomers will $2^{\mathrm{n}}=2^{3}=8$, where $\mathrm{n}$ is the number of double bonds whose each carbon atom is differently substituted.
VITEEE 2017
GENERAL ORGANIC CHEMISTRY
232006
The two enantiomers of secondary butyl chloride differ from each other in which one of the following properties?
1 Boiling point
2 Specific rotation
3 Density
4 $\mathrm{Cl}-\mathrm{Cl}$ bond length
Explanation:
Enantiomer have same physical properties different in specific rotation. Then, the two enantiomer of secondary butyl chloride differ in specific rotation.
AP EAMCET- (Engg.) - 2010
GENERAL ORGANIC CHEMISTRY
232008
Which one of the following statements is true for the optical rotation exhibited by $(2 R, 3 R)$ and $(2 \mathrm{~S}, 3 \mathrm{~S})$ dibromobutanes?
1 The direction and magnitude are same.
2 The direction is opposite, but magnitude is same.
3 The direction is same, but magnitude is different.
4 Both the direction and magnitude are different.
Explanation:
' $R$ ' configuration is given to the isomer if sequence is left to right whereas, $\mathrm{S}$ is given to the isomer if sequence is right to left. Thus, both the isomers are opposite in direction but same in magnitude.
A.P. EAMCET(MEDICAL) - 2009
GENERAL ORGANIC CHEMISTRY
232010
Which one of the following is not a possible isomer of the alkane whose molecular mass is 86g?
In option a, b \& d have same molecule mass while in part (c) its molecular mass increase by $\mathrm{CH}_{3}$ so its molecular mass become $99 \mathrm{~g}$ and rest are $86 \mathrm{~g}$.
Assam CEE-2019
GENERAL ORGANIC CHEMISTRY
232024
Which of the following compounds is achiral?
1
2
3
4
Explanation:
A molecule is said to be achiral if it is superimposable on its mirror image such molecules possess some elements of symmetry.
231997
The number of geometrical isomers of $\mathrm{CH}_{3} \mathrm{CH}=\mathrm{CH}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}=\mathrm{CHCl}$ is
1 2
2 4
3 6
4 8
Explanation:
The given structure has three double bonds whose each carbon atom is differently substituted hence number of geometrical isomers will $2^{\mathrm{n}}=2^{3}=8$, where $\mathrm{n}$ is the number of double bonds whose each carbon atom is differently substituted.
VITEEE 2017
GENERAL ORGANIC CHEMISTRY
232006
The two enantiomers of secondary butyl chloride differ from each other in which one of the following properties?
1 Boiling point
2 Specific rotation
3 Density
4 $\mathrm{Cl}-\mathrm{Cl}$ bond length
Explanation:
Enantiomer have same physical properties different in specific rotation. Then, the two enantiomer of secondary butyl chloride differ in specific rotation.
AP EAMCET- (Engg.) - 2010
GENERAL ORGANIC CHEMISTRY
232008
Which one of the following statements is true for the optical rotation exhibited by $(2 R, 3 R)$ and $(2 \mathrm{~S}, 3 \mathrm{~S})$ dibromobutanes?
1 The direction and magnitude are same.
2 The direction is opposite, but magnitude is same.
3 The direction is same, but magnitude is different.
4 Both the direction and magnitude are different.
Explanation:
' $R$ ' configuration is given to the isomer if sequence is left to right whereas, $\mathrm{S}$ is given to the isomer if sequence is right to left. Thus, both the isomers are opposite in direction but same in magnitude.
A.P. EAMCET(MEDICAL) - 2009
GENERAL ORGANIC CHEMISTRY
232010
Which one of the following is not a possible isomer of the alkane whose molecular mass is 86g?
In option a, b \& d have same molecule mass while in part (c) its molecular mass increase by $\mathrm{CH}_{3}$ so its molecular mass become $99 \mathrm{~g}$ and rest are $86 \mathrm{~g}$.
Assam CEE-2019
GENERAL ORGANIC CHEMISTRY
232024
Which of the following compounds is achiral?
1
2
3
4
Explanation:
A molecule is said to be achiral if it is superimposable on its mirror image such molecules possess some elements of symmetry.
231997
The number of geometrical isomers of $\mathrm{CH}_{3} \mathrm{CH}=\mathrm{CH}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}=\mathrm{CHCl}$ is
1 2
2 4
3 6
4 8
Explanation:
The given structure has three double bonds whose each carbon atom is differently substituted hence number of geometrical isomers will $2^{\mathrm{n}}=2^{3}=8$, where $\mathrm{n}$ is the number of double bonds whose each carbon atom is differently substituted.
VITEEE 2017
GENERAL ORGANIC CHEMISTRY
232006
The two enantiomers of secondary butyl chloride differ from each other in which one of the following properties?
1 Boiling point
2 Specific rotation
3 Density
4 $\mathrm{Cl}-\mathrm{Cl}$ bond length
Explanation:
Enantiomer have same physical properties different in specific rotation. Then, the two enantiomer of secondary butyl chloride differ in specific rotation.
AP EAMCET- (Engg.) - 2010
GENERAL ORGANIC CHEMISTRY
232008
Which one of the following statements is true for the optical rotation exhibited by $(2 R, 3 R)$ and $(2 \mathrm{~S}, 3 \mathrm{~S})$ dibromobutanes?
1 The direction and magnitude are same.
2 The direction is opposite, but magnitude is same.
3 The direction is same, but magnitude is different.
4 Both the direction and magnitude are different.
Explanation:
' $R$ ' configuration is given to the isomer if sequence is left to right whereas, $\mathrm{S}$ is given to the isomer if sequence is right to left. Thus, both the isomers are opposite in direction but same in magnitude.
A.P. EAMCET(MEDICAL) - 2009
GENERAL ORGANIC CHEMISTRY
232010
Which one of the following is not a possible isomer of the alkane whose molecular mass is 86g?
In option a, b \& d have same molecule mass while in part (c) its molecular mass increase by $\mathrm{CH}_{3}$ so its molecular mass become $99 \mathrm{~g}$ and rest are $86 \mathrm{~g}$.
Assam CEE-2019
GENERAL ORGANIC CHEMISTRY
232024
Which of the following compounds is achiral?
1
2
3
4
Explanation:
A molecule is said to be achiral if it is superimposable on its mirror image such molecules possess some elements of symmetry.
231997
The number of geometrical isomers of $\mathrm{CH}_{3} \mathrm{CH}=\mathrm{CH}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}=\mathrm{CHCl}$ is
1 2
2 4
3 6
4 8
Explanation:
The given structure has three double bonds whose each carbon atom is differently substituted hence number of geometrical isomers will $2^{\mathrm{n}}=2^{3}=8$, where $\mathrm{n}$ is the number of double bonds whose each carbon atom is differently substituted.
VITEEE 2017
GENERAL ORGANIC CHEMISTRY
232006
The two enantiomers of secondary butyl chloride differ from each other in which one of the following properties?
1 Boiling point
2 Specific rotation
3 Density
4 $\mathrm{Cl}-\mathrm{Cl}$ bond length
Explanation:
Enantiomer have same physical properties different in specific rotation. Then, the two enantiomer of secondary butyl chloride differ in specific rotation.
AP EAMCET- (Engg.) - 2010
GENERAL ORGANIC CHEMISTRY
232008
Which one of the following statements is true for the optical rotation exhibited by $(2 R, 3 R)$ and $(2 \mathrm{~S}, 3 \mathrm{~S})$ dibromobutanes?
1 The direction and magnitude are same.
2 The direction is opposite, but magnitude is same.
3 The direction is same, but magnitude is different.
4 Both the direction and magnitude are different.
Explanation:
' $R$ ' configuration is given to the isomer if sequence is left to right whereas, $\mathrm{S}$ is given to the isomer if sequence is right to left. Thus, both the isomers are opposite in direction but same in magnitude.
A.P. EAMCET(MEDICAL) - 2009
GENERAL ORGANIC CHEMISTRY
232010
Which one of the following is not a possible isomer of the alkane whose molecular mass is 86g?
In option a, b \& d have same molecule mass while in part (c) its molecular mass increase by $\mathrm{CH}_{3}$ so its molecular mass become $99 \mathrm{~g}$ and rest are $86 \mathrm{~g}$.
Assam CEE-2019
GENERAL ORGANIC CHEMISTRY
232024
Which of the following compounds is achiral?
1
2
3
4
Explanation:
A molecule is said to be achiral if it is superimposable on its mirror image such molecules possess some elements of symmetry.
231997
The number of geometrical isomers of $\mathrm{CH}_{3} \mathrm{CH}=\mathrm{CH}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}=\mathrm{CHCl}$ is
1 2
2 4
3 6
4 8
Explanation:
The given structure has three double bonds whose each carbon atom is differently substituted hence number of geometrical isomers will $2^{\mathrm{n}}=2^{3}=8$, where $\mathrm{n}$ is the number of double bonds whose each carbon atom is differently substituted.
VITEEE 2017
GENERAL ORGANIC CHEMISTRY
232006
The two enantiomers of secondary butyl chloride differ from each other in which one of the following properties?
1 Boiling point
2 Specific rotation
3 Density
4 $\mathrm{Cl}-\mathrm{Cl}$ bond length
Explanation:
Enantiomer have same physical properties different in specific rotation. Then, the two enantiomer of secondary butyl chloride differ in specific rotation.
AP EAMCET- (Engg.) - 2010
GENERAL ORGANIC CHEMISTRY
232008
Which one of the following statements is true for the optical rotation exhibited by $(2 R, 3 R)$ and $(2 \mathrm{~S}, 3 \mathrm{~S})$ dibromobutanes?
1 The direction and magnitude are same.
2 The direction is opposite, but magnitude is same.
3 The direction is same, but magnitude is different.
4 Both the direction and magnitude are different.
Explanation:
' $R$ ' configuration is given to the isomer if sequence is left to right whereas, $\mathrm{S}$ is given to the isomer if sequence is right to left. Thus, both the isomers are opposite in direction but same in magnitude.
A.P. EAMCET(MEDICAL) - 2009
GENERAL ORGANIC CHEMISTRY
232010
Which one of the following is not a possible isomer of the alkane whose molecular mass is 86g?
In option a, b \& d have same molecule mass while in part (c) its molecular mass increase by $\mathrm{CH}_{3}$ so its molecular mass become $99 \mathrm{~g}$ and rest are $86 \mathrm{~g}$.
Assam CEE-2019
GENERAL ORGANIC CHEMISTRY
232024
Which of the following compounds is achiral?
1
2
3
4
Explanation:
A molecule is said to be achiral if it is superimposable on its mirror image such molecules possess some elements of symmetry.
