i.(A) `overset(Delta)to ` glassy traparent beat (B) on platinum wire
(B) `+ CuSO_(4) rarr ` coloured bead(C )
ii `underset((D))((A))+conc. H_(2)SO_(4)+CH_(3)CH_(2)OH overset("ignite")rarr` green flame
iv.Aqueous solution (A) is alkline
Identify AC.
A. `Cu_(3)(PO_(4))_(2)`
B. `CuSO_(4)`
C. `Cu(BO_(2))_(2)`
D. None of these