Which of the Following Methods Are Used for the Purification

question 67

Multiple Choice

Which of the following methods are used for the purification of metals?
I. distillation
II. zone refining
III. electrolysis

• A) I and II only
• B) II and III only
• C) I and III only
• D) I, II, and III
• E) none of I, II, and III

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Definitions:

Consistent

Showing steady and uniform characteristics or behavior over a period of time, lacking any significant variation.

Reliable

The extent to which an assessment tool produces consistent and stable results over multiple applications or time periods.

Standardized

The process of making something conform to a standard in order to ensure consistency and comparability.

Norms

Shared expectations or rules within a society or group about how members should behave.