In the reaction $A + B \to \text{Products}$,if $B$ is taken in excess,then it is an example of

The rate constant for a second order reaction is $8 \times 10^{-5} \ M^{-1} \ min^{-1}$. How long will it take a $1 \ M$ solution to be reduced to $0.5 \ M$?

For a fourth-order reaction,what is the unit of $K$?

Why is the hydrolysis of an ester slow at the beginning and fast after some time?

The hydrolysis of an organic chloride in the presence of a large excess of water is given by: $R-Cl + H_2O \rightarrow R-OH + HCl$. Which of the following options is correct?

The mechanism of reaction $2 \ NO + Cl_2 \rightarrow 2 \ NOCl$ is given as :
$(i) 2 NO \underset{k_2}{\stackrel{k_1}{\rightleftharpoons}} N_2 O _2$ (fast)
$(ii) N_2O_2 + Cl_2 \xrightarrow{K_3} 2 \ NOCl$ (slow)
The rate expression of the reaction will be :