JEE Main 20204 Sep, Evening shiftChemistryEasyd- and f-Block Elements158× since 2002
The incorrect statement(s) among (a) - (c) is
(are)
(a) W(VI) is more stable than Cr(VI).
(b) In the presence of HCl, permanganate
titrations provide satisfactory results.
(c) Some lanthanoid oxides can be used as
phosphors.