The pair from the following pairs having both compounds with net non-zero dipole moment is

Major product '$$\mathrm{P}$$' formed in the following reaction is:

The correct order of reactivity of following haloarenes towards nucleophilic substitution with aqueous $$\mathrm{NaOH}$$ is :

Choose the correct answer from the options given below:

Choose the halogen which is most reactive towards $$\mathrm{S}_{\mathrm{N}} 1$$ reaction in the given compounds (A, B, C & D)