Which of the following contains maximum number of molecules?

Options

A. 1 g of `CO_(2)`
B. 1g `N_(2)`
C. 1 g `H_(2)`
D. 1g `CH_(4)`

Explanation

To determine which of the given substances contains the maximum number of molecules, we will calculate the number of molecules in 1 gram of each substance using Avogadro's number (6.022 x 10^23 molecules per mole) and the molar mass of each substance.

### Step-by-Step Solution:

1. **Identify the Molar Mass of Each Substance:**
- **Carbon Dioxide (CO₂):**
- Carbon (C) = 12 g/mol
- Oxygen (O) = 16 g/mol
...