In which of the following cases electrostatic force will be more case 1) force between +q and a neutral object and case 2) force between +q and -q, explain in detail.

Solution,
The force between two charged particles will be more.
The force between +q and a neutral particle separated by a distance will be only the gravitational pull between them as a neutral particle doesn't experience any electrostatic pull.
While the force between two oppositely charged particles separated by the same distance will experience electrostatic force of attraction along with the gravitational pull.