Chemical Industry Multiple Choice Questions on “Zinc”.
1. Which is the third most extensively used non-ferrous metal?
a) Lead
b) Copper
c) Zinc
d) Aluminium
Answer: c
Clarification: Zinc is the third most extensively used nonferrous metal next to aluminium and copper. Zinc tends to lose its identity in the product.
2. What is electro galvanizing?
a) Copper plating
b) Zinc plating
c) Aluminium plating
d) Lead plating
Answer: b
Clarification: Electro galvanizing is the name given to zinc plating when applied continuously to steel. Copper plating is the plating copper on an item electrolytically.