Chemical equilibrium is dynamic in nature because

In which of the following reactions,the concentration of product is higher than the concentration of reactant at equilibrium? $(K = \text{equilibrium constant})$

The equilibrium constant for the reaction $N_{2(g)} + O_{2(g)} \rightleftharpoons 2NO_{(g)}$ is $4 \times 10^{-4}$ at $2000 \ K$. In the presence of a catalyst,equilibrium is attained ten times faster. Therefore,the equilibrium constant in the presence of the catalyst at $2000 \ K$ is:

For the equilibrium,$H_{2}O_{(l)} \rightleftharpoons H_{2}O_{(g)},$ which of the following is correct?

When the rate of the forward reaction becomes equal to the rate of the backward reaction,this state is termed as:

$A$ chemical reaction $A \rightleftharpoons B$ is said to be in equilibrium when ........