Zinc is more active than cobalt and iron but less active than aluminum.Cobalt is more active than nickel but less active than iron.Which of the following correctly lists the elements in order of increasing activity?
A)Co

Question

Zinc is more active than cobalt and iron but less active than aluminum.Cobalt is more active than nickel but less active than iron.Which of the following correctly lists the elements in order of increasing activity?
A)Co < Ni < Fe < Zn < Al
B)Ni < Fe < Co < Zn < Al
C)Ni < Co < Fe < Zn < Al
D)Fe < Ni < Co < Al < Zn
E)Zn < Al < Co < Ni < Fe

Quizplus · Accepted Answer

According to the given information, the order of increasing activity is: Ni < Co < Fe < Zn < Al. Choice A and B have incorrect orders, while choice D and E have incorrect starting points. Therefore, the correct choice is C.

Zinc Is More Active Than Cobalt and Iron but Less