Yes it does. At higher concentration the behaviour is different than lower concentration. It does affect on peak potential.

I think yes. As electrolyte molarity increased the charge content increases then peaks shifted.

It does.

It does and you can quantitatively calculate the amount of the peak shift using Nernst Equation if the kinetics of the redox reaction(s) is/are fast (or the reaction(s) is/are reversible).

Thank you for all your answers and suggestions, but

I am varying molarity of precursor while synthesizing metal oxide

Off course the electrolyte molarity affect the peaks but here I wish to see whether precursor molarity has any effect on the redox peaks or not?

It hard to judge and should vary case by case. If increasing the molarity of the metal oxide results in changing the electronic structure, morphology or chemical composition, the redox peaks' position will be modified. I suggest you trying it experimentally.

I have produced metal oxide the material has same composition only surface morphology became dense.

Did the dense morphology caused the peak shift?

Thank u for answers

But its the case of molarity of precursor varied during synthesis

But still guys

Thanks for ur support