Question

which of the following substance is blue in colour CU s o4 f s o4 z and S o4 l2s 44

Answer 1

CuSo4................please mark as brainliest

Answer 2

Copper metal is black in colour while copper (II) suphate is blue in colour

This is the reason why when iron fillings mixed with copper (II) sulphate ,the solution changes from blue to colourless .

Copper (II) sulphate can be writen as

CuSo4

I believe this helps