CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317563
Assertion : Boiling points of cis-isomers are higher than trans-isomers. Reason : Dipole moments of cis-isomers are higher than trans-isomers.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Boiling points of isomeric compounds depend on dipole - dipole interactions and cis isomers have greater dipole moments (more polar) than trans - isomers (less polar). Thus, both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
AIIMS - 2008
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317564
Which of the following compounds will show geometrical isomerism?
1 Cyclohexene
2 2-hexene
3 3-hexyne
4 1,1-diphenylethylene
Explanation:
Cyclohexene is unsubstituted alicyclic compound. 2-hexene exhibits geometrical isomerism. In 3-hexane,the triply bonded carbon atoms have only one substituent each In 1,1-diphenylethylene,one double bonded carbon atom has two similar groups
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317565
Which of the following compounds has no geometrical isomer?
1 1-Phenylpropene
2 1, 2-Diphenylethene
3 1, 2-Diphenylpropene
4 1, 1-Diphenylpropene
Explanation:
Conceptual Questions
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317566
Among the following, the most stable compound is
1 cis-1, 2-Cyclohexanediol
2 trans-1,2-Cyclohexanediol
3 cis-1,3-Cyclohexanediol
4 trans-1,3-Cyclohexanediol
Explanation:
Among 1,2 and 1, 3 configurations, 1, 3 is more stable due to less repulsion. Further among cis and trans configurations, the trans is more stable due to less crowding. Hence trans-1, 3Cyclohexanediol is the most stable among the given compounds.
AIIMS - 2006
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317567
Which of the following compounds will exhibit geometrical isomerism?
1 2-Phenyl-1-butane
2 1, 1-Diphenyl-1-propene
3 1-Phenyl-2-butene
4 3-Phenyl-1-butene
Explanation:
In 1 - Phenyl - 2 - butene, the two groups around each of the doubly bonded carbon are different. This compound can show cis-and trans-isomerism.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317563
Assertion : Boiling points of cis-isomers are higher than trans-isomers. Reason : Dipole moments of cis-isomers are higher than trans-isomers.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Boiling points of isomeric compounds depend on dipole - dipole interactions and cis isomers have greater dipole moments (more polar) than trans - isomers (less polar). Thus, both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
AIIMS - 2008
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317564
Which of the following compounds will show geometrical isomerism?
1 Cyclohexene
2 2-hexene
3 3-hexyne
4 1,1-diphenylethylene
Explanation:
Cyclohexene is unsubstituted alicyclic compound. 2-hexene exhibits geometrical isomerism. In 3-hexane,the triply bonded carbon atoms have only one substituent each In 1,1-diphenylethylene,one double bonded carbon atom has two similar groups
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317565
Which of the following compounds has no geometrical isomer?
1 1-Phenylpropene
2 1, 2-Diphenylethene
3 1, 2-Diphenylpropene
4 1, 1-Diphenylpropene
Explanation:
Conceptual Questions
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317566
Among the following, the most stable compound is
1 cis-1, 2-Cyclohexanediol
2 trans-1,2-Cyclohexanediol
3 cis-1,3-Cyclohexanediol
4 trans-1,3-Cyclohexanediol
Explanation:
Among 1,2 and 1, 3 configurations, 1, 3 is more stable due to less repulsion. Further among cis and trans configurations, the trans is more stable due to less crowding. Hence trans-1, 3Cyclohexanediol is the most stable among the given compounds.
AIIMS - 2006
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317567
Which of the following compounds will exhibit geometrical isomerism?
1 2-Phenyl-1-butane
2 1, 1-Diphenyl-1-propene
3 1-Phenyl-2-butene
4 3-Phenyl-1-butene
Explanation:
In 1 - Phenyl - 2 - butene, the two groups around each of the doubly bonded carbon are different. This compound can show cis-and trans-isomerism.
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CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317563
Assertion : Boiling points of cis-isomers are higher than trans-isomers. Reason : Dipole moments of cis-isomers are higher than trans-isomers.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Boiling points of isomeric compounds depend on dipole - dipole interactions and cis isomers have greater dipole moments (more polar) than trans - isomers (less polar). Thus, both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
AIIMS - 2008
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317564
Which of the following compounds will show geometrical isomerism?
1 Cyclohexene
2 2-hexene
3 3-hexyne
4 1,1-diphenylethylene
Explanation:
Cyclohexene is unsubstituted alicyclic compound. 2-hexene exhibits geometrical isomerism. In 3-hexane,the triply bonded carbon atoms have only one substituent each In 1,1-diphenylethylene,one double bonded carbon atom has two similar groups
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317565
Which of the following compounds has no geometrical isomer?
1 1-Phenylpropene
2 1, 2-Diphenylethene
3 1, 2-Diphenylpropene
4 1, 1-Diphenylpropene
Explanation:
Conceptual Questions
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317566
Among the following, the most stable compound is
1 cis-1, 2-Cyclohexanediol
2 trans-1,2-Cyclohexanediol
3 cis-1,3-Cyclohexanediol
4 trans-1,3-Cyclohexanediol
Explanation:
Among 1,2 and 1, 3 configurations, 1, 3 is more stable due to less repulsion. Further among cis and trans configurations, the trans is more stable due to less crowding. Hence trans-1, 3Cyclohexanediol is the most stable among the given compounds.
AIIMS - 2006
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317567
Which of the following compounds will exhibit geometrical isomerism?
1 2-Phenyl-1-butane
2 1, 1-Diphenyl-1-propene
3 1-Phenyl-2-butene
4 3-Phenyl-1-butene
Explanation:
In 1 - Phenyl - 2 - butene, the two groups around each of the doubly bonded carbon are different. This compound can show cis-and trans-isomerism.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317563
Assertion : Boiling points of cis-isomers are higher than trans-isomers. Reason : Dipole moments of cis-isomers are higher than trans-isomers.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Boiling points of isomeric compounds depend on dipole - dipole interactions and cis isomers have greater dipole moments (more polar) than trans - isomers (less polar). Thus, both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
AIIMS - 2008
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317564
Which of the following compounds will show geometrical isomerism?
1 Cyclohexene
2 2-hexene
3 3-hexyne
4 1,1-diphenylethylene
Explanation:
Cyclohexene is unsubstituted alicyclic compound. 2-hexene exhibits geometrical isomerism. In 3-hexane,the triply bonded carbon atoms have only one substituent each In 1,1-diphenylethylene,one double bonded carbon atom has two similar groups
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317565
Which of the following compounds has no geometrical isomer?
1 1-Phenylpropene
2 1, 2-Diphenylethene
3 1, 2-Diphenylpropene
4 1, 1-Diphenylpropene
Explanation:
Conceptual Questions
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317566
Among the following, the most stable compound is
1 cis-1, 2-Cyclohexanediol
2 trans-1,2-Cyclohexanediol
3 cis-1,3-Cyclohexanediol
4 trans-1,3-Cyclohexanediol
Explanation:
Among 1,2 and 1, 3 configurations, 1, 3 is more stable due to less repulsion. Further among cis and trans configurations, the trans is more stable due to less crowding. Hence trans-1, 3Cyclohexanediol is the most stable among the given compounds.
AIIMS - 2006
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317567
Which of the following compounds will exhibit geometrical isomerism?
1 2-Phenyl-1-butane
2 1, 1-Diphenyl-1-propene
3 1-Phenyl-2-butene
4 3-Phenyl-1-butene
Explanation:
In 1 - Phenyl - 2 - butene, the two groups around each of the doubly bonded carbon are different. This compound can show cis-and trans-isomerism.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317563
Assertion : Boiling points of cis-isomers are higher than trans-isomers. Reason : Dipole moments of cis-isomers are higher than trans-isomers.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Boiling points of isomeric compounds depend on dipole - dipole interactions and cis isomers have greater dipole moments (more polar) than trans - isomers (less polar). Thus, both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
AIIMS - 2008
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317564
Which of the following compounds will show geometrical isomerism?
1 Cyclohexene
2 2-hexene
3 3-hexyne
4 1,1-diphenylethylene
Explanation:
Cyclohexene is unsubstituted alicyclic compound. 2-hexene exhibits geometrical isomerism. In 3-hexane,the triply bonded carbon atoms have only one substituent each In 1,1-diphenylethylene,one double bonded carbon atom has two similar groups
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317565
Which of the following compounds has no geometrical isomer?
1 1-Phenylpropene
2 1, 2-Diphenylethene
3 1, 2-Diphenylpropene
4 1, 1-Diphenylpropene
Explanation:
Conceptual Questions
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317566
Among the following, the most stable compound is
1 cis-1, 2-Cyclohexanediol
2 trans-1,2-Cyclohexanediol
3 cis-1,3-Cyclohexanediol
4 trans-1,3-Cyclohexanediol
Explanation:
Among 1,2 and 1, 3 configurations, 1, 3 is more stable due to less repulsion. Further among cis and trans configurations, the trans is more stable due to less crowding. Hence trans-1, 3Cyclohexanediol is the most stable among the given compounds.
AIIMS - 2006
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317567
Which of the following compounds will exhibit geometrical isomerism?
1 2-Phenyl-1-butane
2 1, 1-Diphenyl-1-propene
3 1-Phenyl-2-butene
4 3-Phenyl-1-butene
Explanation:
In 1 - Phenyl - 2 - butene, the two groups around each of the doubly bonded carbon are different. This compound can show cis-and trans-isomerism.
