The number of chain isomers of C7H16 are
A. 9
B. 4
C. 6
D. 7
Answer: Option A
Solution (By Examveda Team)
In organic chemistry, chain isomers refer to compounds that have the same molecular formula but differ in the arrangement of carbon atoms in the carbon chain.For the molecular formula C7H16, there are 9 different chain isomers that can be formed. These isomers are based on various structural arrangements of the carbon chain, where the positions of branches or substituents differ, leading to different compounds.
Chain isomers are compounds with the same molecular formula but different arrangements of the carbon skeleton.
The 9 chain isomers of heptane are:
1. n-Heptane
2. 2-Methylhexane
3. 3-Methylhexane
4. 2,2-Dimethylpentane
5. 2,3-Dimethylpentane
6. 2,4-Dimethylpentane
7. 3,3-Dimethylpentane
8. 3-Ethylpentane
9. 2,2,3-Trimethylbutane
This Question Belongs to Chemistry GK Chapter Wise >> Organic Chemistry
The molecular formula C₇H₁₆ corresponds to heptane, which is an alkane with seven carbon atoms. The number of possible chain isomers (structural isomers differing in the arrangement of the carbon chain) for C₇H₁₆ is 9.
The 9 chain isomers of C₇H₁₆:
1. n-Heptane
2. 2-Methylhexane
3. 3-Methylhexane
4. 2,2-Dimethylpentane
5. 2,3-Dimethylpentane
6. 2,4-Dimethylpentane
7. 3,3-Dimethylpentane
8. 3-Ethylpentane
9. 2,2,3-Trimethylbutane
Each of these isomers has the same molecular formula but differs in the connectivity of carbon atoms.
Heptane (C7H16) has a total of 9 chain isomers namel n-heptane, 2-methylhexane, 3-methylhexane, 2,3-dimethylpentane, 2,4-dimethylpentane, 2,2-dimethylpentane, 3,3-dimethylpentane, 3-ethylpentane and 2,2,3-trimethylbutane.