<u>Answer:</u> The correct answer is Option 1.
<u>Explanation:</u>
For the given options:
- <u>Option 1:</u> 3.55 mole of O atoms
To calculate the number of moles, we use the equation:

Moles of Oxygen = 3.55 mol
Molar mass of Oxygen = 16 g/mol
Putting values in above equation, we get:

Mass of oxygen atoms = 56.8 g
- <u>Option 2:</u> 4.52 g of O atoms
Mass of oxygen atoms = 4.52 g
- <u>Option 3:</u> 0.0032 kg of
molecule
Converting this into grams, we use the conversion factor:
1 kg = 1000 g
So, 0.0032 kg = 3.2 g
Mass of
molecule = 3.2 g
- <u>Option 4:</u>
of
molecule
According to mole concept:
1 mole of an atom contains
number of atoms.
If,
number of atoms occupies 32 grams of oxygen molecule.
So,
number of atoms will occupy = 
Mass of
molecule = 39.2 g
Hence, the greatest mass is coming out from option 1.