Fehling solution consist of two separate alkaline solutions. If one of the these is `CuSO_(4)` then the other is :
Fehling solution consist of two separate alkaline solutions. If one of the these is `CuSO_(4)` then the other is :
A. `NaHCO_(3)`
B. `Na_(2)SO_(4)`
C. `NaKC_(4)O_(6)H_(4)`
D. `NaKC_(2)O_(4)`.
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