Van Arkel method of purification of metals involves converting the metal to a
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a
Volatile enough stable compound
b
Volatile unstable compound
c
Non-volatile stable compound
d
None of these
answer is A.
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Detailed Solution
Van Arkel method of purification of metals involves converting the metal to a volatile stable compound.For example, Ni is heated with CO to form volatile Ni(CO)4Ni+4CO→300-350K Ni(CO)4