The reaction $2N_2O_5 \rightleftharpoons 2N_2O_4 + O_2$ is

The hydrolysis of an ester is catalyzed by dilute acids $A$ and $B$. The rate constants for the two processes are $K_A$ and $K_B$ respectively. If $K_A > K_B$,which of the following statements is correct?

The half-life of decomposition of gaseous $CH_3CHO$ at initial pressure of $364 \ mm$ and $182 \ mm$ of $Hg$ were $440 \ sec$ and $880 \ sec$ respectively. The order of the reaction is

Which of the following statements is $NOT$ true about the rate constant $k$?

$2 \ FeCl_3 + SnCl_2 \rightarrow 2 \ FeCl_2 + SnCl_4$. This reaction is an example of:

An elementary reaction between $A$ and $B$ is a second order reaction. Which of the following rate equations must be correct?