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How manyh assymmetric carbon atoms are present in
(i) 2-Dimethyl cyclohexane
(ii) 3-Methyl cyclopentene
(iii) 3-Methylcyclohexene
(i) 2-Dimethyl cyclohexane
(ii) 3-Methyl cyclopentene
(iii) 3-Methylcyclohexene
- a)2,1,1
- b)1,1,1
- c)2,0.2
- d)2,0,1
Correct answer is option 'A'. Can you explain this answer?
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How manyh assymmetric carbon atoms are present in(i) 2-Dimethyl cycloh...
Asymmetric carbon atoms are those carbon atoms which are attached to four different groups or atoms. These carbon atoms are also known as chiral centers.
(i) 2-Dimethyl cyclohexane:
- Cyclohexane has no asymmetric carbon atoms.
- When two methyl groups are attached to cyclohexane, it becomes 2,3-dimethyl cyclohexane.
- The carbon at position 2 is attached to two methyl groups and two hydrogen atoms. Therefore, it is not an asymmetric carbon atom.
- The carbon at position 3 is attached to one methyl group, one hydrogen atom, one methyl group, and one cyclohexane ring. Therefore, it is an asymmetric carbon atom.
- Hence, there is one asymmetric carbon atom in 2-dimethyl cyclohexane.
(ii) 3-Methyl cyclopentene:
- Cyclopentene has one asymmetric carbon atom.
- When a methyl group is attached to cyclopentene at position 3, it becomes 3-methyl cyclopentene.
- The carbon at position 3 is attached to one methyl group, one hydrogen atom, one double bond with carbon, and one cyclopentene ring. Therefore, it is an asymmetric carbon atom.
- Hence, there is one asymmetric carbon atom in 3-methyl cyclopentene.
(iii) 3-Methylcyclohexene:
- Cyclohexene has one asymmetric carbon atom.
- When a methyl group is attached to cyclohexene at position 3, it becomes 3-methylcyclohexene.
- The carbon at position 3 is attached to one methyl group, one hydrogen atom, one double bond with carbon, and one cyclohexene ring. Therefore, it is an asymmetric carbon atom.
- Hence, there is one asymmetric carbon atom in 3-methylcyclohexene.
Therefore, the correct answer is option 'A' (2,1,1) as there are 2 asymmetric carbon atoms in total, with 1 in 2-dimethyl cyclohexane, 1 in 3-methyl cyclopentene, and 1 in 3-methylcyclohexene.
(i) 2-Dimethyl cyclohexane:
- Cyclohexane has no asymmetric carbon atoms.
- When two methyl groups are attached to cyclohexane, it becomes 2,3-dimethyl cyclohexane.
- The carbon at position 2 is attached to two methyl groups and two hydrogen atoms. Therefore, it is not an asymmetric carbon atom.
- The carbon at position 3 is attached to one methyl group, one hydrogen atom, one methyl group, and one cyclohexane ring. Therefore, it is an asymmetric carbon atom.
- Hence, there is one asymmetric carbon atom in 2-dimethyl cyclohexane.
(ii) 3-Methyl cyclopentene:
- Cyclopentene has one asymmetric carbon atom.
- When a methyl group is attached to cyclopentene at position 3, it becomes 3-methyl cyclopentene.
- The carbon at position 3 is attached to one methyl group, one hydrogen atom, one double bond with carbon, and one cyclopentene ring. Therefore, it is an asymmetric carbon atom.
- Hence, there is one asymmetric carbon atom in 3-methyl cyclopentene.
(iii) 3-Methylcyclohexene:
- Cyclohexene has one asymmetric carbon atom.
- When a methyl group is attached to cyclohexene at position 3, it becomes 3-methylcyclohexene.
- The carbon at position 3 is attached to one methyl group, one hydrogen atom, one double bond with carbon, and one cyclohexene ring. Therefore, it is an asymmetric carbon atom.
- Hence, there is one asymmetric carbon atom in 3-methylcyclohexene.
Therefore, the correct answer is option 'A' (2,1,1) as there are 2 asymmetric carbon atoms in total, with 1 in 2-dimethyl cyclohexane, 1 in 3-methyl cyclopentene, and 1 in 3-methylcyclohexene.
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How manyh assymmetric carbon atoms are present in(i) 2-Dimethyl cycloh...
Asymmetric Carbon Atoms
Asymmetric carbon atoms are those carbon atoms which are attached to four different atoms or groups. Such carbon atoms have a non-superimposable mirror image which makes them chiral.
Calculation of Asymmetric Carbon Atoms
(i) 2-Dimethyl cyclohexane
In 2-Dimethyl cyclohexane, there are two methyl groups attached to one carbon atom and one hydrogen atom attached to the other carbon atom of the same ring. Hence, there are two asymmetric carbon atoms present in 2-Dimethyl cyclohexane.
(ii) 3-Methyl cyclopentene
In 3-Methyl cyclopentene, there is one methyl group, one hydrogen atom, and one double bond attached to the same carbon atom. Hence, there is one asymmetric carbon atom present in 3-Methyl cyclopentene.
(iii) 3-Methylcyclohexene
In 3-Methylcyclohexene, there is one methyl group, one hydrogen atom, and one double bond attached to the same carbon atom. Hence, there is one asymmetric carbon atom present in 3-Methylcyclohexene.
Therefore, the total number of asymmetric carbon atoms present in (i) 2-Dimethyl cyclohexane, (ii) 3-Methyl cyclopentene, and (iii) 3-Methylcyclohexene is 2, 1, and 1 respectively.
Hence, the correct option is (a) 2, 1, 1.
Asymmetric carbon atoms are those carbon atoms which are attached to four different atoms or groups. Such carbon atoms have a non-superimposable mirror image which makes them chiral.
Calculation of Asymmetric Carbon Atoms
(i) 2-Dimethyl cyclohexane
In 2-Dimethyl cyclohexane, there are two methyl groups attached to one carbon atom and one hydrogen atom attached to the other carbon atom of the same ring. Hence, there are two asymmetric carbon atoms present in 2-Dimethyl cyclohexane.
(ii) 3-Methyl cyclopentene
In 3-Methyl cyclopentene, there is one methyl group, one hydrogen atom, and one double bond attached to the same carbon atom. Hence, there is one asymmetric carbon atom present in 3-Methyl cyclopentene.
(iii) 3-Methylcyclohexene
In 3-Methylcyclohexene, there is one methyl group, one hydrogen atom, and one double bond attached to the same carbon atom. Hence, there is one asymmetric carbon atom present in 3-Methylcyclohexene.
Therefore, the total number of asymmetric carbon atoms present in (i) 2-Dimethyl cyclohexane, (ii) 3-Methyl cyclopentene, and (iii) 3-Methylcyclohexene is 2, 1, and 1 respectively.
Hence, the correct option is (a) 2, 1, 1.
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How manyh assymmetric carbon atoms are present in(i) 2-Dimethyl cyclohexane(ii) 3-Methyl cyclopentene(iii) 3-Methylcyclohexenea)2,1,1b)1,1,1c)2,0.2d)2,0,1Correct answer is option 'A'. Can you explain this answer?
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How manyh assymmetric carbon atoms are present in(i) 2-Dimethyl cyclohexane(ii) 3-Methyl cyclopentene(iii) 3-Methylcyclohexenea)2,1,1b)1,1,1c)2,0.2d)2,0,1Correct answer is option 'A'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about How manyh assymmetric carbon atoms are present in(i) 2-Dimethyl cyclohexane(ii) 3-Methyl cyclopentene(iii) 3-Methylcyclohexenea)2,1,1b)1,1,1c)2,0.2d)2,0,1Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for How manyh assymmetric carbon atoms are present in(i) 2-Dimethyl cyclohexane(ii) 3-Methyl cyclopentene(iii) 3-Methylcyclohexenea)2,1,1b)1,1,1c)2,0.2d)2,0,1Correct answer is option 'A'. Can you explain this answer?.
How manyh assymmetric carbon atoms are present in(i) 2-Dimethyl cyclohexane(ii) 3-Methyl cyclopentene(iii) 3-Methylcyclohexenea)2,1,1b)1,1,1c)2,0.2d)2,0,1Correct answer is option 'A'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about How manyh assymmetric carbon atoms are present in(i) 2-Dimethyl cyclohexane(ii) 3-Methyl cyclopentene(iii) 3-Methylcyclohexenea)2,1,1b)1,1,1c)2,0.2d)2,0,1Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for How manyh assymmetric carbon atoms are present in(i) 2-Dimethyl cyclohexane(ii) 3-Methyl cyclopentene(iii) 3-Methylcyclohexenea)2,1,1b)1,1,1c)2,0.2d)2,0,1Correct answer is option 'A'. Can you explain this answer?.
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