(Solved): 2. (7 points) When treated with acid, \( \mathrm{NaNO}_{2} \) generates the nitrosonium ion ( \( \l ...

2. (7 points) When treated with acid, \( \mathrm{NaNO}_{2} \) generates the nitrosonium ion ( \( \left.\mathrm{NO}^{+}\right) \), which is the active species involved in the conversion of primary aryl amines into benzenediazonium ions. Provide a reasonable curved-arrow mechanism (including resonance arrows) for this transformation.