Chemistry - GOC Question with Solution | TestHub

${\mathrm{SiMe}}_3$ donates inductively because silicon is less electronegative than carbon; tert-butyl is an electron-releasing alkyl group; negatively charged $\mathrm{COO}-$ is also classified as $+\mathrm{I}$ in the source's substituent scheme. Hence all listed groups are $+\mathrm{I}$ in that convention.