Which statement is always true about a reversible chemical reaction?
o a. the concentration of reactants is higher than that of the products.
b. the products can form reactants, and the reactants can form products.
c. the concentrations of reactants and products are not constant.
d. the concentration of the products is higher than that of the reactants.

Answer : The correct option is, (B) The products can form reactants, and the reactants can form products.

Explanation :

Reversible reaction : It is a chemical reaction in which the reactants form products and products react together to give reactants back. That means reversible reaction can go in both direction forward as well as backward direction.

The general chemical reaction is:

aA + bB ⇄ cC + dD

(A and R are reactants and C and D are products)

When reversible reaction reaches to equilibrium point then at that point the concentration of reactant is equal to the concentration of product.

Hence, the correct option is, (B)

c, liquids evaporate, creating a gas

c. electrical charges of ionic bonds.