Chemistry - GOC Question with Solution | TestHub

Nucleophilic strength increases down a column of the Periodic Table (in solvents

that can have hydrogen bonds, such as water, alcohols, thio alcohols).

Nucleophilic strength$\mathrm{R}{\mathrm{O}}^{\mathrm{\Theta }}<\mathrm{R}{\mathrm{S}}^{\mathrm{\Theta }}$. Base strength$\mathrm{R}{\mathrm{O}}^{\mathrm{\Theta }}>\mathrm{R}{\mathrm{S}}^{\mathrm{\Theta }}$. Thus,$\mathrm{R}{\mathrm{S}}^{\mathrm{\Theta }}$is more nucleophilic but less basic than$\mathrm{R}{\mathrm{O}}^{\mathrm{\Theta }}$