Question:
Which of the following is used in vehicles for the inflation of airbags?
Which of the following is used in vehicles for the inflation of airbags?
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Lithium nitride (Li\(_3\)N) is commonly used for the generation of nitrogen gas in airbags, replacing older, less efficient compounds.
Updated On: Sep 24, 2025
- Li\(_3\)N
- Na\(_3\)N
- Ca\(_3\)N
- Pb(N\(_3\))\(_2\)
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The Correct Option is A
Solution and Explanation
Step 1: Use of Nitrogen Compounds in Airbags.
Airbags in vehicles are inflated using nitrogen gas, which is generated by the decomposition of sodium azide (NaN\(_3\)) in older systems. However, newer systems use lithium nitride (Li\(_3\)N) for safer and more efficient gas generation. Upon decomposition, lithium nitride produces nitrogen gas (N\(_2\)), which inflates the airbags instantly.
Step 2: Analyzing the Options.
- (1) Li\(_3\)N is the correct choice, as it is used in modern airbags for nitrogen generation.
- (2) Na\(_3\)N is not used in airbags.
- (3) Ca\(_3\)N is not commonly used for airbags.
- (4) Pb(N\(_3\))\(_2\) is not used in airbags.
Step 3: Conclusion.
The correct compound used in airbag inflation is Li\(_3\)N, which corresponds to option (1).
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