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Which one among the following chemicals can be used to clean the surface of gold ornaments?

(Click on suggested Options to select the answer \| Color Red means : Wrong & Green Means: Correct)
Which one among the following chemicals can be used to clean the surface of gold ornaments? A. Sodium thiosulphate solution B. Aqua-regia C. Concentrated sodium hydroxide D. Concentrated sulphuric acid Check Answer Complaint Here As Incorrect Question / Answer

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