# NEET Chemistry Chemical Kinetics Questions Solved

Following reaction was carried out at 300 K.

$2S{O}_{2}\left(g\right)+{O}_{2}\left(g\right)\to 2S{O}_{3}\left(g\right)$

How is the rate of formation of $S{O}_{3}$related to the rate of disapperance of ${O}_{2}$ ?

(A) $-\frac{∆\left[{O}_{2}\right]}{∆t}=+\frac{1}{2}\frac{∆\left[S{O}_{3}\right]}{∆t}$

(B) $-\frac{∆\left[{O}_{2}\right]}{∆t}=\frac{∆\left[S{O}_{3}\right]}{∆t}$

(C) $-\frac{∆\left[{O}_{2}\right]}{∆t}=-\frac{1}{2}\frac{∆\left[S{O}_{3}\right]}{∆t}$

(D) None of these

(A) Rate of reaction =$-\frac{∆\left[{O}_{2}\right]}{∆t}=+\frac{1}{2}\frac{∆\left[S{O}_{3}\right]}{∆t}$

Therefore, rate of disappearance of ${O}_{2}$ is related to rate of formation of $S{O}_{3}$ as $-\frac{∆\left[{O}_{2}\right]}{∆t}=+\frac{1}{2}\frac{∆\left[S{O}_{3}\right]}{∆t}$

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