Choose the correct order $:-$

Give three points of difference between the inductive effect and the resonance effect.

Explain the inductive effect with a suitable example.

Define the electromeric effect and describe its types.

The decreasing order of reactivity towards electrophilic substitution for the following compounds is:

With respect to the compounds $I-V$,choose the correct statement$(s)$.
$(A)$ The acidity of compound $I$ is due to delocalization in the conjugate base.
$(B)$ The conjugate base of compound $IV$ is aromatic.
$(C)$ Compound $II$ becomes more acidic,when it has a $-NO_2$ substituent.
$(D)$ The acidity of compounds follows the order $IV > V > I > II > III$.