A copper coin is completely covered with a gold film and is placed in – InterviewSolution

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1.	A copper coin is completely covered with a gold film and is placed in dilute HNO_(3). This will result in formation of
Answer» GOLD nitrate Copper nitrate Nond of these Purple of cassius Solution :NONE of the above. Since, gold is a noble is a metal and COMMON acids do not ATTACK on it if used SINGLY.

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