A metal , which is not affected by strong acids such as concentrated and concentrated…

CHEMISTRY · Single correct · CBSE · Chemistry · d- and f-Block Elements · d- and f-Block Elements

Problem

A metal

M

, which is not affected by strong acids such as concentrated

\mathrm{HNO_3}

and concentrated

\mathrm{H_2SO_4}

, or by concentrated alkalis such as

\mathrm{NaOH}

and

\mathrm{KOH}

, forms

\mathrm{MCl_3}

, which is used for tanning and in photography. The metal

M

is (1) Ag (2) Hg (3) Au (4) Cu