Question

The following results were obtained during kinetic studies of the reaction $2 \mathrm{~A}+\mathrm{B} \longrightarrow$ products

| Experiment | $[\mathrm{A}]$ (in mol L$^{-1}$) | $[\mathrm{B}]$ (in mol L$^{-1}$) | Initial rate of reaction (in $\mathrm{mol} \mathrm{L}^{-1} \mathrm{~min}^{-1}$) |
|------------|----------------------------------|----------------------------------|--------------------------------------------------------------------------------|
| I          | 0.10                             | 0.20                             | $6.93 	imes 10^{-3}$                                                          |
| II         | 0.10                             | 0.25                             | $6.93 	imes 10^{-3}$                                                          |
| III        | 0.20                             | 0.30                             | $1.386 	imes 10^{-2}$                                                         |

The time (in minutes) required to consume half of $A$ is

Accepted Answer

(B) 10

Answer

(A) 5

Answer

(C) 1

Answer

(D) 100

JEE Main · 2019 · 09 Jan 2019 · Shift 1 · Chemical Kinetics

Solution

More JEE Main questions on Chemical Kinetics

Experiment	$[A]$ (in mol L $^{- 1}$ )	$[B]$ (in mol L $^{- 1}$ )	Initial rate of reaction (in $mol L^{- 1} min^{- 1}$ )
I	0.10	0.20	$6.93 \times 1 0^{- 3}$
II	0.10	0.25	$6.93 \times 1 0^{- 3}$
III	0.20	0.30	$1.386 \times 1 0^{- 2}$