CHEMICAL TEST: BEILSTEIN TEST Member # 1 Sample Flame Color Produced Discuss briefly the principle of color reaction in flame test DCM 1-bromobutane 2-bromobutane 2-bromo-2-methylbutane green green green green CuX2 when heated produces blue to green flame. Conclusion: A green to blue flame color indicates that there is presence of Cl, Br, and I in a substance. Hence, all the sample were proven to have halogens attached to them.