Identify the species from the following that exhibits no-bond resonance.

The decreasing order of stability of the following anions is:

The hyperconjugative stabilities of tert-butyl cation and $2-$butene,respectively,are due to

Which of the following is an incorrect representation of the electromeric effect?

Explain the inductive effect with a suitable example.

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 $IV > V > I > II > III$.