A metal M which is not affected by strong acids like conc. HNO_3 – InterviewSolution

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1.	A metal M which is not affected by strong acids like conc. HNO_3, conc. H_2SO_4 and conc. solution of alkalies like NaOH, KOH forms MCl_(3), which is used for toning inphotography, The metal M is :
Answer» AG HG Au Cu Answer :C

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