Question

Metal X is found in earth's crust. This metal forms a reddish brown substance when exposed to moist air. When a blue coloured solution Y is stored in a container made of X, the solution turns green and a reddish brown metal Z gets deposited on the container.

X, Y and Z are respectively

(A) Cu, CuSO₄, Fe 

(B) Zn, ZnSO₄, Fe 

(C) Fe, CuSO₄, Cu 

(D) Cu, FeSO₄, Fe

Answer 1

Correct option  (C) Fe, CuSO₄, Cu  

Explanation:

Metal X is Fe which is found in earth's crust.