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The molecular formula of diphenylmethane is C13H12. How many structural isomers are possible when one of the hydrogens is replaced by a chlorine atom?
- 6
- 4
- 8
- 7
Correct answer: 7
Solution
Diphenylmethane has two benzene rings and a central CH2 group. Replacing one hydrogen with chlorine can occur at the CH2 group or at different positions on the benzene rings, leading to 7 distinct structural isomers.
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