Pick out the correct statement(s):

CHEMISTRY · Multi-part · CBSE · Chemistry · d- and f-Block Elements · d- and f-Block Elements

Problem

Pick out the correct statement(s): (a)

\mathrm{MnO_2}

dissolves in concentrated

\mathrm{HCl}

, but does not form

\mathrm{Mn^{4+}}

ions. (b) Decomposition of acidic

\mathrm{KMnO_4}

is not catalysed by sunlight.