Consider the following statements
I. Matter consists of indivisible molecules.
II Atoms of different elements differ in mass.
Choose the correct option.

Options

A. Statement I is correct
B. Statement II is correct
C. Both the statements are correct
D. Neither the statement I nor II is correct

Answer

To solve the question, we need to analyze the two statements provided and determine their validity based on the principles of chemistry, particularly Dalton's atomic theory.

### Step-by-Step Solution:

1. **Evaluate Statement I: "Matter consists of indivisible molecules."**
- According to Dalton's atomic theory, matter is made up of atoms, which are the smallest indivisible units. However, molecules are made up of two or more atoms bonded together. Therefore, the statement that "matter consists of indivisible molecules" is incorrect because molecules can be divided into atoms.

2. **Evaluate Statement II: "Atoms of different elements differ in mass."**
- Dalton's atomic theory states that atoms of different elements have different masses and properties. This statement is correct as it aligns with the understanding that each element has atoms with unique masses.

3. **Conclusion:**
- Since Statement I is false and Statement II is true, we can conclude that only one of the statements is correct.

### Final Answer:
- The correct option is that only Statement II is true.