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In which of the following method of puri...

In which of the following method of purification metal is converted to its volatile compound which is decomposed to give pure metal?

A

heating with stream of carbon monoxide.

B

heating with iodine.

C

liquation.

D

distillation

Text Solution

Verified by Experts

The correct Answer is:
A, B
`underset("Impure")(Ni) + 4CO overset(300-350K)to Ni(CO)_4 overset(450-750K)to underset("Pure")(Ni) + 4CO`
`Ti + 2Cl_2 (g) overset(523K)to TiI_4 (g) overset(1700K)to underset("Pure")(Ti) + 2I_2 (g)`
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