Question
Chemistry Question on Solutions
During the borax bead test with CuSO4, a blue-green colour of the bead was observed in oxidizing flame due to the formation of
A
CuO
B
Cu(BO2)2
C
Cu3B2
D
Cu
Answer
Cu(BO2)2
Explanation
Solution
When borax is heated in a Bunsen burner flame with CuO on loop of platinum wire, a blue coloured Cu(BO2)2 bead is formed