Reaction of trans-2-phenyl-1-bromocyclopentane on reaction with alcoholic KOH produces
4-phenylcyclopentene
2-phenylcyclopentene
1-phenylcyclopentene
1-phenylcyclopentene
The structure of the compound that gives a tribromo derivative on treatment with bromine water is
dichloromethyl cation (C+HCl )
dichlorocarbene ( :CCl2)
trichloromethyl anion (C-Cl3 )
trichloromethyl anion (C-Cl3 )