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Question
How many positional isomers are possible for ?
How many positional isomers are possible for ?
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Solution
The correct option is B 3
Explanation:Positional isomers are isomers in which one or more functional group is at different position on the carbon chain.
In dichlorobenzene there are 3 positional isomers because there are three ways to arrange the 2 Cl group in the benzene ring.There are three dichlorobenzene isomers- 1,2-dichlorobenzene, 1,3-dichlorobenzene, and 1,4-dichlorobenzene.
These isomers are
1. ortho dichlorobenzene or 1,2- dichlorobenzene
2. Meta dichlorobenzene or 1,3- dichlorobenzene
3. Para dichlorobenzene or 1,4- dichlorobenzene
Hence option B is correct answer
Explanation:
Positional isomers are isomers in which one or more functional group is at different position on the carbon chain.
In dichlorobenzene there are 3 positional isomers because there are three ways to arrange the 2 Cl group in the benzene ring.
In dichlorobenzene there are 3 positional isomers because there are three ways to arrange the 2 Cl group in the benzene ring.
There are three dichlorobenzene isomers- 1,2-dichlorobenzene, 1,3-dichlorobenzene, and 1,4-dichlorobenzene.
These isomers are
1. ortho dichlorobenzene or 1,2- dichlorobenzene
2. Meta dichlorobenzene or 1,3- dichlorobenzene
3. Para dichlorobenzene or 1,4- dichlorobenzene
These isomers are
1. ortho dichlorobenzene or 1,2- dichlorobenzene
2. Meta dichlorobenzene or 1,3- dichlorobenzene
3. Para dichlorobenzene or 1,4- dichlorobenzene
Hence option B is correct answer
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