contribution of chemistry in the field of defence?
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It is possible to convert various ingredients into usable cosmetics due to knowledge of chemistry. (d) 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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substances like gunpowder, trinitrotoluence, phosgene, and weapons like laughing gas are products which contribute contribution of chemistry in the field of defence
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