Materials and Construction
Which of the following material of construction may be recommended by a chemical engineer for handling a gaseous chlorine (dry or wet) stream in a fluid flow system?

Mild steel and stainless steel
Copper, nickel and monel
Cast iron, tin and aluminium
High silicon iron, silicon rubber, Kel-F and teflon

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Materials and Construction
Pure nickel is

Ferromagnetic at room temperature
Ferromagnetic above its curie point (i.e., 415°C)
Not resistant to oxidation at high temperature
Having h.c.p. crystal lattice

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