The molecularity and order of reaction can be `0, 1, 2`, etc.
True or False

Answer

To determine whether the statement "The molecularity and order of reaction can be 0, 1, 2, etc." is true or false, we need to analyze the concepts of molecularity and order of reaction.

### Step 1: Define Order of Reaction
The order of a reaction is a measure of how the rate of reaction depends on the concentration of reactants. It is determined experimentally and can take on various values, including:
- Zero (0)
- Positive integers (1, 2, etc.)
- Fractional values
- Negative values

### Step 2: Define Molecularity
Molecularity refers to the number of reactant molecules that are involved in an elementary reaction step. It is a theoretical concept and can only take on:
- Positive integer values (1, 2, 3, etc.)
- It cannot be zero, as this would imply that no reactants are involved in the reaction.

### Step 3: Analyze the Statement
The statement claims that both molecularity and order can be 0, 1, 2, etc.
- The order of reaction can indeed be 0, 1, 2, etc.
- However, molecularity cannot be 0; it must always be a positive integer.

### Conclusion
Since molecularity cannot be zero, the statement is **False**.

### Final Answer
**False**

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