In the reaction $A + B \to $ Products, if $B$ is taken in excess, then it is an example of
Second order reaction
Zero order reaction
Pseudounimolecular reaction
First order reaction
If $‘a’ $ is the initial concentration and $ ‘n’ $ is the order of the reaction and the half life period is $ ‘T’,$ then
When a reaction is progressing
$2 NO +2 H _{2} \rightarrow N _{2}+2 H _{2} O$
The above reaction has been studied at $800^{\circ} C$. The related data are given in the table below.
Reaction serial number | Initial pressure of $H _{2}$ / $kPa$ | Initial Pressure of $NO /$ $kPa$ | Initial rate $\left(\frac{- dp }{ dt }\right) /( kPa / s )$ |
$1$ | $65.6$ | $40.0$ | $0.135$ |
$2$ | $65.6$ | $20.1$ | $0.033$ |
$3$ | $38.6$ | $65.6$ | $0.214$ |
$4$ | $19.2$ | $65.6$ | $0.106$ |
The order of the reaction with respect to $NO$ is $...........$
In the reaction $2A + B \to {A_2}B$, if the concentration of $A$ is doubled and of $B$ is halved, then the rate of the reaction will
For reaction
$Cl_2(aq) + H_2S(aq) \to S(s) + 2H^+(aq) + 2Cl^-(aq)$ rate law is $r = K[Cl_2][H_2S]$
then which of these mechanism is/are consistent with this rate law
$(A)\, H_2S \rightleftharpoons H^+ + HS^-$ (fast)
$Cl_2 + HS^-\to 2Cl^-+ H^+ + S$ (slow)
$(B)\, Cl_2 + H_2S \to H^+ + Cl^-+ Cl^+ + HS^-$ (slow)
$Cl^+ + HS^-\to H^+ + Cl^-+ S$ (fast)