Solution:Concept- You should keep in mind that the idea of balancing chemical equations entails the addition of stoichiometric coefficients to the reactants and products in order to respond to this question. This is crucial because a chemical equation needs to abide by the laws of mass conservation and constant proportions.
Equal numbers and types of each atom appear on both sides of balanced chemical equations. A balanced equation must have coefficients that are the simplest whole number ratio. Chemical processes always retain mass.A balanced chemical reaction contains equal atoms on both sides.
Potassium hydride hydrolysis in water to form Potassium hydroxide.
Hence, the correct answer is option (2).