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| 1. |
What is duma\'s method and kjeldahl method |
| Answer» Duma\'s method:a known mass is heated with dry cupric oxide in an atmosphere of carbon dioxide the carbon and hydrogen are oxidised to carbon dioxide and water while nitrogen is set freeKjeldahl method:a known mass of organic compound is heated with conc H2SO4 so that nitrogen is qualtitatively converted into ammonium sulphate | |