Order of a reaction can be 0,1,2,3……..
II Order of a reaction can never be a fraction .
which of the above statement is true ? Choose the correct option.

Options

A. Only I
B. Only II
C. Both I and II
D. Neither I nor II

Answer

To determine which statement is true regarding the order of a reaction, we need to analyze both statements provided in the question.

### Step 1: Understanding the Order of a Reaction
The order of a reaction is defined as the sum of the powers to which the concentration of each reactant is raised in the rate law expression. It can be determined experimentally and can take on various integer values.

### Step 2: Evaluating Statement I
The first statement claims that "Order of a reaction can be 0, 1, 2, 3…". This statement is true because the order of a reaction can indeed be zero (zero-order reactions), first-order, second-order, third-order, and so on.

### Step 3: Evaluating Statement II
The second statement claims that "Order of a reaction can never be a fraction." This statement is false. In fact, the order of a reaction can be fractional. For example, a reaction may exhibit a rate law where the concentration of a reactant is raised to a power of 1/2 or 3/2, indicating a fractional order.

### Step 4: Conclusion
Based on the evaluation of both statements, we conclude that:
- Statement I is true.
- Statement II is false.

Therefore, the correct option is that the first statement is true.

### Final Answer
The correct option is: **Statement I is true.**