Do you know how to calculate the $n$ or the $z$ factor of the reaction? And the change in the oxidation states of the reactant species?

@AdityaRoychowdhury I agree. I didn't notice that part, thanks for pointing it out.

What I mean to say is, in the original question that you have asked, there is no role of inductive effect. If situation arises, that we also need to see the inductive effect also, then we will see it. I think this would be helpful.

Here, you will use inductive effect, as the alkyl group has more electron releasing tendency, so it will have less -M effect as compared to $\ce{-CHO}$. Wikipedia is a good place to read about it.

While comparing the stability among carbocations and carbanions, we use inductive effect because it gives the idea of electron density on that species, electron deficient species would get stabilsed if it is attached to ERG, similarly carbanions will get stabilised if they are attached to EWG. When comparing "resonating structures", we have to chose which among them is more stable, for which we have different parameters like seeing if their octet is complete, no. of $\pi$ bonds, charge separation, negative charge on EN atom and so on... inductive effect is not relevant here.

Why should inductive effect be considered for resonating structures? It has to do with stability, the one which is more stable will have more contribution in resonating structures. Inductive effect is an entirely different thing than stability.

@Loong Can you provide a source from where I can refer nomencluature rules, I don't have access to the blue book.