The correct decreasing order of nucleo-philicity of the following species are -

(I) ${\left({\mathrm{C}\mathrm{H}}_3\right)}_3{\mathrm{C}\mathrm{O}}^{\mathrm{\Theta }}$

(II) ${\mathrm{C}\mathrm{H}}_3{\mathrm{O}}^{\mathrm{\Theta }}$

(III) ${\left({\mathrm{C}\mathrm{H}}_3\right)}_3{\mathrm{C}\mathrm{H}\mathrm{O}}^{\mathrm{\Theta }}$

(IV) ${\mathrm{C}\mathrm{H}}_3{\mathrm{C}\mathrm{H}}_2{\mathrm{O}}^{\mathrm{\Theta }}$

Which of the following statements is not correct for a nucleophile?

The indicated atom is not a nucleophilic site in

The correct statement regarding electrophiles is:

Given below are two statements :

Statement I : ${\mathrm{C}}_2{\mathrm{H}}_5\mathrm{OH}$ and $\mathrm{AgCN}$ both can generate nucleophile.

Statement II : $\mathrm{KCN}$ and $\mathrm{AgCN}$ both will generate nitrile nucleophile with all reaction conditions.

Choose the most appropriate option :