एक प्रारम्भिक रासायनिक अभिक्रिया, `A_2 underset(K_1)overset(K_1) to 2A ` के लिए व्यंजक `(d[A])/( dt)` है

Options

A. `2k_1 [A_2]-k_(-1) [A]^2`
B. `k_1 [A_2] +K_(-1)[A]^2`
C. `K_1 [A_2]-K_(-1) [A]^2`
D. `2k_1 [A_2] -2K_(-1) [A]^2`

Answer

D

Explanation

`(d[A])/(dt )=2k_1 [A_2] -2k_(-1) [A]^2`