Year: 2020
Topic: Chemistry-Out Of Syllabus
Time :
1.
ldentify the correct statements from the folowing:
(1). Blister copper has blistered appearance due to evolution of CO
2
(2). Vapour phase refining is carried out for Nickel by Van Arkel method.
(3). Pig iron can be moulded into a variety of shapes.
(4). Wrought iron is impure iron with 4% carbon.