Question

For the chemical reaction
$ I ^{\ominus}+ OCl ^{\ominus} \rightarrow Cl ^{\ominus}+ OI ^{\ominus} $
Rate $=\frac{k\left[ OCl ^{\ominus}\right]\left[ I ^{\ominus}\right]}{[\overset{\ominus}{ OH }]}$
the molecularity and order with respect to $[\overset{\ominus}{ OH }]$ is

• A. 0,1
• B. 0,-1
• C. 1,0
• D. -1,0

Answer 1

Answer: (B)

a. Rate $=\frac{k\left[ OCl ^{\ominus}\right]\left[ I ^{\ominus}\right]}{[\overset{\ominus}{ OH }]}$
Order of reaction $=1+1-1=1$
Molecularity of reaction $=1+1=2$
b. Molecularity w.r.t. $|\overset{\ominus} OH |=0$
Order w.r.t. $\mid \overset{\ominus}{ OH }]=-1$