Question

In which test tube did you find that a reaction has occurred.

Answer 1

Answer:

glass test tube

mark me as brainlist

Answer 2

Answer:

The reaction will occur in test tube B . The reactivity of iron (Fe) is more than that of copper (Cu) . So, reaction will takes place in test tube B . In test tube colour of the solution will change from blue to green due to formation of iron sulphate .

Explanation: