This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Anaesthesia
[{'content': 'Gas used in rapid airbag inflation \nSelect and explain. \nA. Sodium azide, B. Nitrocellulose, C. Mercuric nitrate, D. Potassium nitrate', 'role': 'user'}, {'content': "Answer: A \nExplanation: Chemistry of airbagsThe inclusion of airbags in the modern automobiles has led to decrease in the automobile injuries The term airbag is a misnomer as air is not involved in the inflation processRather an airbag inflates rapidly (in about 30ms) due to explosive production of N2 gas. Sodium azide is used which rapidly decomposed to nitrogen gas(Refer: Morgan and Mikhail's Clinical Anaesthesiology, 5th edition)", 'role': 'assistant'}]