Multiple choice A reaction A→ B the stoichiometry of both reactant and product are same and hence the rate of dissappearance of (A) & the rate of appearance of (B) are same. the rate of appearance of (A) & the rate of appearance of (B) are same. the rate of appearance of (A) & the rate of dissappearance of (B) are same none of these Reveal answer Fill a bubble to check yourself A Correct answer Explanation For a reaction A to B with a 1:1 stoichiometry, the rate of disappearance of A equals the rate of appearance of B. The rates of appearance of A and disappearance of B are negative values of the reaction rate.