Answer :
When a reaction has reached Equilibrium, the rate of the forward reaction is equal to that of the backward reaction.
Answer: The correct answer is Option 2.
Explanation:
Reversible reaction is defined as the reaction in which the products formed react together to give the reactants back. For general reversible chemical equation:
[tex]aA+bB\rightleftharpoons cC+dD[/tex]
At equilibrium, the rate of forward reaction is equal to the rate of backward reaction.
Rate of forward reaction: [tex]k[A]^a[B]^b[/tex]
Rate of backward reaction: [tex]k[C]^c[D]^d[/tex]
At equilibrium, [tex]k[A]^a[B]^b[/tex] = [tex]k[C]^c[D]^d[/tex]
Thus, the correct answer is Option 2.