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Calcination

Metals as red...

Question

Metals as reducing agents
(a)Krolls process for titanium
$T i {C l}_{4} + 2 M g ⟶ 2 M g {C l}_{2} + T i$
(b)Gold Schmidt alumino thermite process?

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Solution

(a) In Kroll's process, magnesium is used as reducing agents for titanium tetrachloride.
(b) In Gold Schmidt alumino thermite process, $A l$ is used as a reducing agent because of its low standard reduction potential.

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T i C l_{4} + 2 M g \to T i + 2 M g C l_{2}

. Identify the reaction.

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Q. Match Column 1 with Column 2:

Column 1	Column 2
A. Mond's process	$1. C r_{2} O_{3} + 2 A l △ - \to 2 C r + A l_{2} O_{3}$
B. van Arkel process	$2. T i C l_{4} + 2 M g △ - \to T i + 2 M g C l_{2}$
C. Thermite process	$3. N i (C O)_{4} △ - \to N i + 4 C O$
D. Kroll's process	$4. Z r I_{4} △ - \to Z r + 2 I_{2}$

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