Fluoride can not be detected by this test because the CuF2 formed loses fluorine only at a molten stage above 950oC, which is difficult to be attained in the lab i.e., it is not volatile, and hence, the presence of fluoride can not be detected by this test.
143) Fluorine is not tested by Beilstein′s test because:
Answer is:
Copper fluoride is not volatile
Explanation:
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