The following are some statements about chemical equilibrium.
(A) The rate of forward reaction is equal to the rate of backward reation.
(B) The chemical equilibrium can be established from reactant side only.
(C) The concentration of the reactants and products remain same with time. The correct statements are

Options

A. A and B
B. A and C
C. B and C
D. All A , B , C

Answer

To analyze the statements about chemical equilibrium, let's break down each statement step by step.

### Step 1: Analyze Statement (A)
**Statement (A)**: The rate of forward reaction is equal to the rate of backward reaction.

- **Explanation**: In a state of chemical equilibrium, the rate at which reactants are converted into products (forward reaction) is equal to the rate at which products are converted back into reactants (backward reaction). This is a fundamental characteristic of chemical equilibrium.

**Conclusion**: Statement (A) is correct.

### Step 2: Analyze Statement (B)
**Statement (B)**: The chemical equilibrium can be established from the reactant side only.

- **Explanation**: This statement is misleading. Chemical equilibrium can be established from both the reactant side and the product side. It means that regardless of whether you start with reactants or products, the system will reach equilibrium where the rates of the forward and backward reactions are equal.

**Conclusion**: Statement (B) is incorrect.

### Step 3: Analyze Statement (C)
**Statement (C)**: The concentration of the reactants and products remains the same with time.

- **Explanation**: At equilibrium, although the concentrations of reactants and products remain constant over time, it is important to note that this does not mean that the reactions have stopped. Instead, the forward and backward reactions continue to occur at equal rates, resulting in no net change in concentration.

**Conclusion**: Statement (C) is correct.

### Final Conclusion
Based on the analysis:
- **Correct Statements**: A and C
- **Incorrect Statement**: B

Thus, the correct statements are A and C.