In the above set up substances X and Y are respectively
-
A.
lime water copper (ll) tetraoxosulphate (lV) -
B.
potassium trioxocarbonate and alkaline pyrogallol -
C.
potassium hydroxide and alkaline pyrogallol -
D.
potassium trioxocarbonate (lV) and concentrated tetraoxosulphate (IV) acid