Study the experimental setup shown in the diagram and answer the following questions:
In a laboratory, a Harini heats solid manganese dioxide with concentrated hydrochloric acid. A greenish-yellow gas with a pungent choking smell is evolved, which bleaches moist litmus paper.
i. Based on the observation of a "greenish-yellow gas" (a characteristic of chlorine) and the nature of the reactants, which formulas represent the products formed?
\(MnO_2 + HCl \rightarrow ?\)
\(MnO_2 + HCl \rightarrow ?\)
ii. Using the correct products identified above, select the equation that correctly satisfies the Law of Conservation of Mass: