The overall order of a reaction is determined by summing the exponents of the concentration terms in the rate law.
In this case, the rate law is given as \( \text{Rate} = k[A]^2[B] \).
The exponent of \( [A] \) is 2 and the exponent of \( [B] \) is 1.
Therefore, the overall order is \( 2 + 1 = 3 \).
(i) Write any two differences between order and molecularity.
(ii) What do you mean by pseudo order reaction?
The formal charges on the atoms marked as (1) to (4) in the Lewis representation of \( \mathrm{HNO_3} \) molecule respectively are 