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प्रश्न
What is the contribution of chemistry in the following field?
National Defence
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उत्तर
Contribution of chemistry in the field of national Defence:
Substances like gunpowder, T.N.T. (trinitrotoluene), phosgene, chemical weapons, laughing gas, etc., are all products of chemistry which contribute to the national defence.
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संबंधित प्रश्न
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