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Question
Noble metals react only with ______.
Options
sulphuric acid
hydrochloric acid
aqua regia
nitric acid
MCQ
Fill in the Blanks
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Solution
Noble metals react only with aqua regia.
Explanation:
Noble metals like gold and platinum are chemically unreactive with single concentrated acids. They only dissolve in Aqua Regia, which is a freshly prepared 3 : 1 mixture of concentrated HCl and concentrated HNO3.
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Chapter 8: Study of Compounds: Hydrogen Chloride - Intext Question [Page 165]
