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NTA Abhyas 2020

Exam: NTA Abhyas
Year: 2020
Subject: Chemistry
Chapter: General Principles and Processes of Isolation of Metals

NTA Abhyas 2020 · Chemistry · General Principles and Processes of Isolation of Metals

During the process of electro refining of copper, some metals...

During the process of electro refining of copper, some metals present as impurity settle down as anode mud. These are:

Options

A $Sn$ and $Ag$
BPb and $Zn$
CAg and $Au$
DFe and $Ni$

Correct answer

C. Ag and $Au$

Step-by-step solution

In anode mud, less electropositive elements are present.

Ag

and

Au

are less electropositive than

Cu

.

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