A metal M which is not affected by strong aci | vedclass

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(C) Gold $(Au)$ is a noble metal that is not affected by strong acids like concentrated $HNO_3$ or $H_2SO_4$,nor by concentrated solutions of strong a

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$Au$

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(C) Gold $(Au)$ is a noble metal that is not affected by strong acids like concentrated $HNO_3$ or $H_2SO_4$,nor by concentrated solutions of strong alkalies like $NaOH$ or $KOH$. $Au$ reacts to form gold$(III)$ chloride $(AuCl_3)$,which is widely used for toning in photography. Silver $(Ag)$ forms $AgCl$,which is not $MCl_3$. Therefore,the metal $M$ is $Au$.

$A$ metal $M$ which is not affected by strong acids like conc. $HNO_3$,conc. $H_2SO_4$ and conc. solutions of alkalies like $NaOH$,$KOH$ forms $MCl_3$,which finds use for toning in photography. The metal $M$ is:

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