A) Using Lassaigne's test nitrogen and sulphur present in organic compound can be tested
B) Using Beilstein's test the presence of halogen in a compound can be tested
C) In Lassaigne's filtrate the'nitrogen present in a organic compound is converted into NaCN
D) In the estimation of carbon, an organic compound is heated with' CaO in a combustion tube
Correct Answer: D
Solution :
In. estimation of carbon organic .compound is heated over CuO not CaO. \[\therefore \] [d] is wrong statement and rest are correct.
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