Q152. Hydrogen gas (H2) and iodine vapor (I2) react to form hydrogen iodide (HI) at 425 °C. When the reaction is started with the decomposition of pure HI at the same temperature, the same final mixture composition is achieved. This observation suggests the existence of:Chemistry — NUST Mock By IBAGRADS 1 — Question 152 of 200A. The law of mass actionB. A static equilibriumC. An irreversible reactionD. A dynamic equilibriumPractice more Chemistry MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →