When phosphoric acid and potassium bromide are mixed, a product is A) HBrO(g). B) HBr(g). C) PBr₂(g). D) Br₂(g). E) P₄(s).

Question

Quizplus · Accepted Answer

When phosphoric acid (H3PO4) and potassium bromide (KBr) are mixed, no precipitation or gas evolution occurs. Instead, a double replacement reaction takes place, resulting in the formation of water (H2O) and potassium phosphate (K3PO4). The remaining bromide ion (Br-) reacts with the excess H+ ion from the acid, forming hydrogen bromide (HBr) gas. Therefore, option B is the correct answer.

When Phosphoric Acid and Potassium Bromide Are Mixed, a Product