For an elementary chemical reaction, A 2   ⇄ k - 1 k 1 2 A , the expression for d A dt is:

1. $2{\mathrm{k}}_1\left[{\mathrm{A}}_2\right]-2{\mathrm{k}}_{-1}{\left[\mathrm{A}\right]}^2$
2. $2{\mathrm{k}}_1\left[{\mathrm{A}}_2\right]-{\mathrm{k}}_{-1}{\left[\mathrm{A}\right]}^2$
3. ${\mathrm{k}}_1\left[{\mathrm{A}}_2\right]+{\mathrm{k}}_{-1}{\left[\mathrm{A}\right]}^2$
4. ${\mathrm{k}}_1\left[{\mathrm{A}}_2\right]-{\mathrm{k}}_{-1}{\left[\mathrm{A}\right]}^2$

Solution

Asked in: JEE Main 2019 (10 Jan Shift 2)

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