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Van Arkel - De Boer Method

Which process...

Question

Which process of purification is represented by the following reaction?
$T i + 2 I_{2} 150^0C - --- \to T i I_{4} 1400^0C - ---- \to T i + 2 I_{2}$

A

zone refining

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B

mond's process

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C

cupellation

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D

van arkel process

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Solution

The correct option is D van arkel process
Van Arkel method for refining Zirconium or Titanium. This method is very useful for removing all oxygen and nitrogen present in the form of impurity in metals like $Z r$ and $T i$ .
$T i + 2 I_{2} 150^{o} C ⟶ T i I_{4} 1400^{o} C ⟶ T i + 2 I_{2}$

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Q. Which process of purification is represented by the following scheme?

T i i m p u r e + 2 I_{2} 250^{o} C - -- \to T i I_{4} 1400^{o} C - --- \to T i p u r e + 2 I_{2}

Q. Which method of purification is represented by the following equation?

Z r + 2 I_{2} \to Z r I_{4} 1088 K - --- \to Z r + 2 I_{2}

Q. Which method of purification is represented by the following equation?

T i (s) + 2 I_{2} (g) 523 K - -- \to T i I_{4} (g) 1700 K - --- \to T i (s) + 2 I_{2} (g)

(correct answer +1, wrong answer -0.25)

Q. Which method of purification is represented by the equations_______.

\frac{T i}{(i m p u r e)} + 2 I_{2} 500 k - -- \to T i I_{4} 1675 K - --- \to T i + \frac{2 I_{2}}{(p u r e)}

Q. In the purification of zirconium by van Arkel process which halogen is used?

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