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Question

When two hydrogen atoms in benzene are replaced by two similar or different monovalent atoms or groups, How many different positional isomer are possible?

A
One
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B
Three
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C
Two
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D
Four
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Solution

The correct option is B Three
The total number of positional isomer possible when two hydrogen atoms in benzene are replaced by two similar or different monovalent atoms or groups are three as shown below :

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