Identify the unknown gas if its density relative to air is 1.517.
- O₂
- N₂
- CO₂
- CH₄
📝 Detailed explanation
Molar mass of air ≈ 29 g/mol.Molar mass of gas = 1.517 × 29 ≈ 44 g/mol.
Molar mass of CO₂ = 12 + 16×2 = 44 g/mol.
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