Q. One of the following metals forms a volatile compound and this property is taken advantage for its extraction. This metal is
A) Iron
B) Nickel
C) Cobalt
D) Tungsten
Explanation
(b)
Ni combines with CO to form volatile $Ni(CO)_{4}$ which decomposes to give pure Ni metal and CO on heating.
$Ni(CO)_{4}\overset{Heat}{\rightarrow}Ni\ + \ 4CO \uparrow$
Volatile metal
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.