Which of the Following Acids Is Used by Goldsmiths for Cleaning Gold and Silver Ornaments?

By Team Aakash Byju's | 10th November 2022

The correct answer is C. HNO3

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Nitric acid is normally colourless but tends to acquire a yellow cast due to the accumulation of oxides.

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Precious metals such as gold and platinum do not react with nitric acid.

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Hence it is used for the cleaning purposes of these metals.

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Which of the Following Acids Is Used by Goldsmiths for Cleaning Gold and Silver Ornaments?

A. HCL

B. H SO

2

4

C. HNO

3

D. H PO

3

4

The correct answer is C. HNO3

Nitric acid is normally colourless but tends to acquire a yellow cast due to the accumulation of oxides.

Precious metals such as gold and platinum do not react with nitric acid.

Hence it is used for the cleaning purposes of these metals.

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