Home
Class 12
CHEMISTRY
Which method of purification is represen...

Which method of purification is represented by the equations. ` Ti(s)+2I_(2)(g)overset(523K)(to) TiI_(4)(g)overset(1700K)(to)Ti(s)+2I_(2)(g)` : Cupellation, Poling, van Arkel, Zone refining

A

Zone refining

B

Cupellation

C

Poling

D

van arkel

Text Solution

Verified by Experts

The correct Answer is:
D
Ti, Zr, Hfmetals are purified by van Arkel method. In this process, crude Ti is heated with `I_2` first at 523 Kin an evacuated vessel. It forms `Til_4` which is a volatile compound and gets decomposed to Tion heating over tungsten filament at 1700K.
`Ti(s) + 2I_2(g) overset(523K) rarr Til_4, (g) overset(1700K) rarr Ti(s) + 2I_2 (g)`
Promotional Banner

Similar Questions

Explore conceptually related problems

Complete the equations: CuO(s) + H_2(g) overset(Heat) rarr ……….. + ………….

Assign the order of the following reaction. H_(2(g)+CI_(2(g) overset (rarr)(hv)2HCI_(g) .

Justify the given reaction is redox reaction 2K (s) + F_2 (g) to 2FK (s)

C_(3)H_(7)Cl overset(KOH("alc")) to (A) overset(Cl_(2)(g))underset(770 K) to (X). (X) can be:

Write the direction ratios and direction cosines of the vector oversetrarra=2overset^^i+3overset^^j-4overset^^k.

Justify that the following reaction is a redox reaction H_2S_(g) + Cl_(2(g)) rarr 2HCl_(g) + S_(s)

Find the magnitude of oversetrarra given by oversetrarra =(overset^^i+3overset^^j-2overset^^k)xx(-overset^^i+3overset^^k)

For the reaction H_2(g)+I_2(g) hArr 2 HI (g) K c=54.8 at 700 K . Calculate the value of K_p

If the K_(c) of the reaction N_(2)(g)+3H_(2)(g) iff 2NH_(3)(g) at 750 K is 49, then the K_(c) of the reaction NH_(3)(g) iff 1/2N_(2)(g)+3/2H_(2)(g) at the same temperature is