what will be the result if we mix Potassium format solution and Ammonium chloride solution?

Answer 1

Potassium formate is HCOOK

Ammonium chloride is NH4Cl

They are both soluble in water (aqueous), so the reaction would be written as

HCOOK(aq) + NH4Cl(aq) ==> HCOONH4(aq) + HCl(aq)

Since all four species are strong electrolytes, they all ionize/dissociate completely, leaving all ions in solution. The result is NO REACTION.