Order of Reaction

Q.

What is the order of reaction whose rate constant has the same units as the rate of reaction?

Q.

If I is the intensity of absorbed light and C is the concentration of AB for the photochemical process $AB+hV\to AB$,
then the rate of formation of AB is directly proportional to?

1. $I^2$

2. C

3. I

4. C.I

Q.

For reaction: A + B $\to$ Products, the rate if the reaction at various concentration are given below:

$\begin{array}{cccc}\text{Expt. No.}& \text{(A)}& \text{(B)}& \text{Rate}\\ 1& 0.2& 0.2& 2\\ 2& 0.2& 0.4& 4\\ 3& 0.6& 0.4& 36\end{array}$

1. $\text{Rate}=k\left[A{]}^2\right[B{]}^2$

2. $\text{Rate}=k\left[A{]}^2\right[B]$

3. $\text{Rate}=k\left[A\right][B{]}^2$

4. $\text{Rate}=k\left[A{]}^3\right[B]$

Q.

Which one of the following is a second order reaction?

1. $H_2+B{r}_2\to 2HBr$

2. $H_2+C{l}_2\to 2HCl$

3. $N{H}_{4}N{O}_3\to N_2+3H_{2}O$

4. $C{H}_{3}COOC{H}_3+NaOH\to C{H}_{3}COONa+C{H}_{3}OH$