Answer:
A
Explanation:
A reversible reaction is a reaction in which under certain conditions, the product and reactant are in equilibrium with each other. Normal reactions starts with the reactant breaking bonds to have an unstable intermediate before producing the products. While in reversible reactions, the intermediate are usually a complex of both the product and reactant. Under a certain condition eg increase in pressure, the forward will be favoured or decrease in concentration of the reactant will favor the forward reaction while increasing it favor the backward reaction.
aA + bB ⇄ cC + dD
The above expression is an example of reversible reaction. (A and B) are both reactant while (C and D) are the products. However under normal conditions, they're at equilibrium with each other I.e the concentration of the reactant and products are equal.
