Which of the following is not nucleophile?

مندرجہ ذیل میں سے کون نیوکلیوفائل نہیں ہے؟

AlCl₃

NH₃

HSO₃⁻

None of these

AlCl₃ (Aluminum chloride) is not a nucleophile because it is an electron-deficient Lewis acid.

This meaning it accepts electrons instead of donating them.

Nucleophiles are species that donate electron pairs.

While AlCl₃ acts as an electrophile in chemical reactions.