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Which method of purification is represen...

Which method of purification is represented by the following equation
`Ti(s)

A

Zone refining

B

Cupellation

C

Poling

D

Van -Arkel.

Text Solution

Verified by Experts

The correct Answer is:
A
Van-Arkel method of purification of metals is based on the thermal decomposition of a volatile iodide formed first by direct combination of metal to be purified and iodine. Metal formed is in its purest form. Metals such as titanium and zirconium are purified by this method.
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DINESH PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-REVISION QUESTIONS FROM COMPETITIVE EXAMS.
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  3. During electrolytic refining of copper some metals , present as impuri...

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  8. the carbon based reduction method is not used for extraction of

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  9. which of the following electronts is present as the impurity to the m...

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  10. Which of the following pairs of metals uis purified by van arkel meth...

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  11. Extraction of metal from the ore cassiterite involves

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  13. Which ore of the following is a mineral of iron ?

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  14. Aluminium is extracted from Alumina (Al(2)O3 ) by electrolysis of a mo...

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  15. In the extraction of copper from its sulphide ore, the metal is finall...

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  16. Identify the alloy containing a non metal as a constituent in it

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  17. Roasting of sulphides gives the gas X as a byproduct . This is a colou...

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  18. Sulphide ores are common for the metals

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  19. Vapour phase refining for the purification of

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