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AIIMS 2015

Exam: AIIMS
Year: 2015
Subject: Chemistry
Chapter: General Principles and Processes of Isolation of Metals

AIIMS 2015 · Chemistry · General Principles and Processes of Isolation of Metals

Which of the following is not the correct match?

Which of the following is not the correct match?

Options

ALeaching : $\mathrm{Ag}$
BZone refining : $\mathrm{Sn}$
CLiquation : $\mathrm{Pb}$
Dvan Arkel : $\mathrm{Zr}$

Correct answer

B. Zone refining : $\mathrm{Sn}$

Step-by-step solution

Zone refining method is used for the elements like

\mathrm{Si}, \mathrm{Ge}, \mathrm{Ga}

etc. which are used as semiconductors and are required in highly pure form.

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