CHEMISTRY · Single correct · CBSE · Chemistry · d- and f-Block Elements · d- and f-Block Elements
Problem
Mark the correct statement:
(1) Hg forms an amalgam with iron.
(2) Hg vapour is non-poisonous.
(3) Hg is monoatomic and monovalent in mercurous compounds.
(4) Oxysalts of mercury are thermally unstable.