1
The electron displacement effect observed in the given structures is known as:
Assertion (A): Chlorobenzene is not formed in the reaction of phenol with thionyl chloride. Reason (R): In phenol, carbon-oxygen bond has partial double bond character.
Arrange the following halides in decreasing order of their reactivity towards dehydrohalogenation:
If the interval in which the real-valued function \[ f(x) = \log\left(\frac{1+x}{1-x}\right) - 2x - \frac{x^{3}}{1-x^{2}} \] is decreasing in \( (a,b) \), where \( |b-a| \) is maximum, then {a}⁄{b} =