NEET Test Series from KOTA - 10 Papers In MS WORD
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GENERAL ORGANIC CHEMISTRY
232074
Which of the following compounds shows geometrical isomerism?
1 2-methylpent-2-ene
2 4-methylpent-2-ene
3 4-methylpent-1-ene
4 2-methylpent-1-ene
Explanation:
(B): There should be restricted rotation around the double bond. Substituent attached to double bond must be different. If it follows these two condition then the compound show geometrical isomerism are-
JEE Main 2020
GENERAL ORGANIC CHEMISTRY
232076
Which of the following compound will exhibit geometrical isomerism?
1 1-phenyl-2-butene
2 3-phenyl-1-butene
3 2-phenyl-1-butene
4 1,1-diphenyl-1-propane
Explanation:
(A): Only compound A will be show geometrical isomerism.
JEE Main 2015
GENERAL ORGANIC CHEMISTRY
232078
The number of stereoisomers possible for a compound of the molecular formula $\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}(\mathrm{OH})-\mathrm{Me}$ is
1 3
2 2
3 4
4 6
Explanation:
(C): $\mathrm{d}$ and $l$ for cis form $\mathrm{d}$ and $l$ for trans form So, total 4 isomers are possible
AIEEE 2009
GENERAL ORGANIC CHEMISTRY
232083
Among the following which is the least stable conformation of cyclohexane?
1 Boat conformation
2 Half chair conformation
3 Twist boat conformation
4 Chair conformation
Explanation:
In the conformation of cyclohexane half chair conformation is least stable and chair conformation is more stable because during formation of cyclohexane half chair has high potential energy where chair conformation has low potential energy
232074
Which of the following compounds shows geometrical isomerism?
1 2-methylpent-2-ene
2 4-methylpent-2-ene
3 4-methylpent-1-ene
4 2-methylpent-1-ene
Explanation:
(B): There should be restricted rotation around the double bond. Substituent attached to double bond must be different. If it follows these two condition then the compound show geometrical isomerism are-
JEE Main 2020
GENERAL ORGANIC CHEMISTRY
232076
Which of the following compound will exhibit geometrical isomerism?
1 1-phenyl-2-butene
2 3-phenyl-1-butene
3 2-phenyl-1-butene
4 1,1-diphenyl-1-propane
Explanation:
(A): Only compound A will be show geometrical isomerism.
JEE Main 2015
GENERAL ORGANIC CHEMISTRY
232078
The number of stereoisomers possible for a compound of the molecular formula $\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}(\mathrm{OH})-\mathrm{Me}$ is
1 3
2 2
3 4
4 6
Explanation:
(C): $\mathrm{d}$ and $l$ for cis form $\mathrm{d}$ and $l$ for trans form So, total 4 isomers are possible
AIEEE 2009
GENERAL ORGANIC CHEMISTRY
232083
Among the following which is the least stable conformation of cyclohexane?
1 Boat conformation
2 Half chair conformation
3 Twist boat conformation
4 Chair conformation
Explanation:
In the conformation of cyclohexane half chair conformation is least stable and chair conformation is more stable because during formation of cyclohexane half chair has high potential energy where chair conformation has low potential energy
232074
Which of the following compounds shows geometrical isomerism?
1 2-methylpent-2-ene
2 4-methylpent-2-ene
3 4-methylpent-1-ene
4 2-methylpent-1-ene
Explanation:
(B): There should be restricted rotation around the double bond. Substituent attached to double bond must be different. If it follows these two condition then the compound show geometrical isomerism are-
JEE Main 2020
GENERAL ORGANIC CHEMISTRY
232076
Which of the following compound will exhibit geometrical isomerism?
1 1-phenyl-2-butene
2 3-phenyl-1-butene
3 2-phenyl-1-butene
4 1,1-diphenyl-1-propane
Explanation:
(A): Only compound A will be show geometrical isomerism.
JEE Main 2015
GENERAL ORGANIC CHEMISTRY
232078
The number of stereoisomers possible for a compound of the molecular formula $\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}(\mathrm{OH})-\mathrm{Me}$ is
1 3
2 2
3 4
4 6
Explanation:
(C): $\mathrm{d}$ and $l$ for cis form $\mathrm{d}$ and $l$ for trans form So, total 4 isomers are possible
AIEEE 2009
GENERAL ORGANIC CHEMISTRY
232083
Among the following which is the least stable conformation of cyclohexane?
1 Boat conformation
2 Half chair conformation
3 Twist boat conformation
4 Chair conformation
Explanation:
In the conformation of cyclohexane half chair conformation is least stable and chair conformation is more stable because during formation of cyclohexane half chair has high potential energy where chair conformation has low potential energy
NEET Test Series from KOTA - 10 Papers In MS WORD
WhatsApp Here
GENERAL ORGANIC CHEMISTRY
232074
Which of the following compounds shows geometrical isomerism?
1 2-methylpent-2-ene
2 4-methylpent-2-ene
3 4-methylpent-1-ene
4 2-methylpent-1-ene
Explanation:
(B): There should be restricted rotation around the double bond. Substituent attached to double bond must be different. If it follows these two condition then the compound show geometrical isomerism are-
JEE Main 2020
GENERAL ORGANIC CHEMISTRY
232076
Which of the following compound will exhibit geometrical isomerism?
1 1-phenyl-2-butene
2 3-phenyl-1-butene
3 2-phenyl-1-butene
4 1,1-diphenyl-1-propane
Explanation:
(A): Only compound A will be show geometrical isomerism.
JEE Main 2015
GENERAL ORGANIC CHEMISTRY
232078
The number of stereoisomers possible for a compound of the molecular formula $\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}(\mathrm{OH})-\mathrm{Me}$ is
1 3
2 2
3 4
4 6
Explanation:
(C): $\mathrm{d}$ and $l$ for cis form $\mathrm{d}$ and $l$ for trans form So, total 4 isomers are possible
AIEEE 2009
GENERAL ORGANIC CHEMISTRY
232083
Among the following which is the least stable conformation of cyclohexane?
1 Boat conformation
2 Half chair conformation
3 Twist boat conformation
4 Chair conformation
Explanation:
In the conformation of cyclohexane half chair conformation is least stable and chair conformation is more stable because during formation of cyclohexane half chair has high potential energy where chair conformation has low potential energy
