Question

Four different metals are taken in four different test tubes and concentrated sulphuric acid is poured into each of them. In one of the test tube the solution turns blue then the metal is c) Zn b) Ni c) Co d) Cu​

Answer 1

Answer:

Cu

Explanation:

When concentration $H_{2}SO_{4}$ is reacted with $Cu$, the products are $CuSO_{4}$ + $H_{2}$. This formed Copper Sulphate is blue in colour which makes the solution blue.