Question

Which of the following metal is highly corrosive ? A) Zinc B) Aluminum C) Gold D) Silver​

Answer 1

Answer:

option b. ) Aluminum

because aluminum metal is highly corrosive

Answer 2

In these following options, Zinc is a highly corrosive metal.

• The corrosion of Zinc occurs when it is exposed to moisture and air. Then, a thin oxide layer is formed after the reaction between zinc and oxygen. Then, zinc hydroxide and zinc carbonate are produced after the reaction of the last layer with moisture and CO2 respectively.

• Normally, the corrosion rate of zinc is higher than Aluminium but there is an exception when it comes to the solution with pH 11. In this, the corrosion rate of Zinc and Aluminium is practically the same.