For a chemical reaction $Y + 2Z \to $ Product, rate controlling step is $Y\, + \frac{1}{2}Z\, \to Q$  If the concentration of $Z$ is doubled, the rate of reaction will

For a particular reaction, the rate expression is given as $r = k[A] [B]^{0.5}$. If the volume of vessel is reduced to one-fourth of the initial volume, the rate of reaction would

For the reaction : $2A + B \to  A_2B$ ; the rate $= K[A]\, [B]^2$ with $K = 2.0\times10^{-6}\, lit^2\, mol^{-2}\, sec^{-1}$. Initial concentration of $A$ and $B$ are $0.2\, mol/lit$ and $0.4\, mol/lit$ respectively. Calculate the rate of reaction after $[A]$ is reduced to $0.12\, mol/litre$.

For a certain reaction $A \to P$ , the half life for different initial concentration of $A$ is mentioned below 

$[A_0]$  $||$  $0.1$  $||$  $0.025$

$t_{1/2}(s)$  $||$ $100$  $||$  $50$

Which of the following option $(s)$ is / are correct

For the reaction $A + 2B \to C,$ rate is given by $R$ $ = [A]{[B]^2}$ then the order of the reaction is

The reaction $2{H_2}{O_2} \to 2{H_2}O + {O_2}$ is a