The reaction that occurs in a breath analyser, a device used to determine the alcohol level in a person's blood stream is

$2 \mathrm{~K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}+8 \mathrm{H}_{2} \mathrm{SO}_{4}+3 \mathrm{C}_{2} \mathrm{H}_{6} \mathrm{O} \rightarrow 2 \mathrm{Cr}_{2}\left(\mathrm{SO}_{4}\right)_{3}+$

$3 \mathrm{C}_{2} \mathrm{H}_{4} \mathrm{O}_{2}+2 \mathrm{~K}_{2} \mathrm{SO}_{4}+11 \mathrm{H}_{2} \mathrm{O}$

If the rate of appearance of $\mathrm{Cr}_{2}\left(\mathrm{SO}_{4}\right)_{3}$ is $2.67 \,\mathrm{~mol}$ $\min ^{-1}$ at a particular time, the rate of disappearance of $\mathrm{C}_{2} \mathrm{H}_{6} \mathrm{O}$ at the same time is ...... $\mathrm{mol}\, \mathrm{min}^{-1}$ (Nearest integer)

  • [JEE MAIN 2021]
  • A

    $3$

  • B

    $2$

  • C

    $4$

  • D

    $1$

Similar Questions

Consider the reaction between chlorine and nitric oxide

$Cl _{2}( g )+2 NO ( g ) \rightarrow 2 NOCl ( g )$

On doubling the concentration of both reactants, the rate of the reaction increases by a factor of $8 .$ However, if only the concentration of $C l_{2}$ is doubled, the rate increases by a factor of $2 .$ The order of this reaction with respect to $NO$ is :

  • [NEET 2017]

For the decomposition of azoisopropane to hexane and nitrogen at $543$ $K ,$ the following data are obtained.

$t$ $(sec)$ $P(m m \text { of } H g)$
$0$ $35.0$
$360$ $54.0$
$720$ $63.0$

Calculate the rate constant.

The instantaneous rate of disappearance of $MnO_4^-$ ion in the following reaction is $4.56\times10^{-3}\,Ms^{-1}$,  $2MnO_4^-+ 10I^-+ 16 H^+ \to  2 Mn^{2+} + 5I_2 + 8H_2O$ The rate of appearance $I_2$ is

The reaction between $A$ and $B$ is first order with respect to $A$ and zero order with respect to $B$. Fill in the blanks in the following table:

Experiment $[ A ] / mol\, ^{-1}$ $[ B ] / mol\, ^{-1}$ Initial rate $/$ $mol$ $L^{-1}$ $min$ $^{-1}$
$I$ $0.1$ $0.1$ $2.0 \times 10^{-2}$
$II$ - $0.2$ $4.0 \times 10^{-2}$
$III$ $0.4$ $0.4$ -
$IV$ - $0.2$ $2.0 \times 10^{-2}$

 

If initial concentration is reduced to its $1/4^{th}$  in a zero order reaction, the time taken for half of the reaction to complete