Question

Which one of the following metal occurs in the native form?

• A. Au
• B. Ca
• C. Mg
• D. Na

Answer 1

The Correct Option is A

To solve the problem, we need to identify which of the given metals occurs in the native form (i.e., in its pure elemental state in nature).

1. Understanding Native Form of a Metal:
Native form refers to a metal that is found in its natural, uncombined form, often as nuggets or crystals, without reacting with other elements to form compounds.

2. Analyzing the Given Metals:

- Gold (Au): Gold is a metal that naturally occurs in its native form. It is often found in its pure metallic state in nature.
- Calcium (Ca): Calcium does not occur in its native form; it is highly reactive and usually found in compounds like limestone or gypsum.
- Magnesium (Mg): Magnesium does not occur in its native form; it is usually found in compounds like magnesium carbonate or magnesium sulfate.
- Sodium (Na): Sodium also does not occur in its native form; it is highly reactive and is typically found in compounds like sodium chloride (NaCl).

Final Answer:
The metal that occurs in its native form is $ {\text{Au}} $ (Gold).