what is the use of cotton wool while burning of ammonia in presence of cotton wool
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to remove the moisture so that reaction happened with zero error
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The Vapor Density (VD) of oxygen is 8 and that of Ammonia is 8.5. So, Oxygen is lighter than ammonia. When oxygen is released, it will replace ammonia from the top. The cotton wool placed in between the outlets of ammonia and oxygen allows less quantity of oxygen through it. This way controlled burning of ammonia is achieved.
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