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  4. The radical can be identified by borax bead test is

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Q. The radical can be identified by borax bead test is

BVP MedicalBVP Medical 2009

Solution:

Borax bead test is given by only those transition metal ions or salts which contain unpaired electrons. Among the given ions, only $ C{{u}^{+}} $ and $ C{{u}^{2+}} $ are transition metal ions. Out of these only $ C{{u}^{2+}} $ contains unpaired electron, hence it gives borax bead test.

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