Q. Identify the correct statement from the following :
A) Blister copper has blistered appearance due to evolution of $CO_2$.
B) Vapour phase refining is carried out for Nickel by Van Arkel method.
C) Pig iron can be moulded into a variety of shapes.
D) Wrought iron is impure iron with 4% carbon.
Explanation
[Solution] Pig iron can be cast into various shapes. Blisters on copper are due to $SO_2$, Ni is refined by the Mond process, and wrought iron is the purest commercial iron. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.