Chemistry · Some Basic Concepts of Chemistry

Consider the following statements: (A) Antoine Lavoisier formulated the Law of Conservation of Mass in 1789 based on careful combustion experiments. (B) The unit factor method is also known as dimensional analysis or factor label method. (C) The unit factor \( \frac{1\text{ in}}{2.54\text{ cm}} \) has a numerical value of zero. (D) In unit conversion, unit factors can be multiplied, inverted, or squared like algebraic numbers. Choose the correct answer from the options given below:

1. (A), (B) and (D) only
2. (B) and (C) only
3. (A), (B) and (C) only

4. (A) and (C) only