MCQ
Fehling's solution ' $A$ ' is
- Aalkaline copper sulphate
- Balkaline solution of sodium potassium tartrate (Rochelle's salt)
- Caqueous sodium citrate
- ✓aqueous copper sulphate
Fehling solution ' $B$ ' = Alkaline sodium potassium tartrate (Rochelle salt)
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Reason $(R):$ The laws of reflection are strictly valid for plane surfaces but not for large spherical surfaces.