Combustion products of PVC

Steps:

• PVC is poly(vinyl chloride), with repeating unit C₂H₃Cl.
• Complete combustion: C₂H₃Cl + 2.5 O₂ → 2 CO₂ + H₂O + HCl.
• Products include CO₂ (greenhouse gas), H₂O, and HCl (acidic gas).
• Match products to statements for accuracy.

Why A is correct:

• CO₂, a product, is a greenhouse gas that traps heat and contributes to global warming per atmospheric science definitions.

Why the others are wrong:

• B: HCl is also produced, not just CO₂ and H₂O.
• C: HCl reacts with water to form acidic solution (H₃O⁺), not alkaline.
• D: HCl is corrosive and hazardous, requiring exhaust gas treatment.

Final answer: A