MCQ
$IUPAC$ name of $H_2 [PtCl_6]$ is
- ✓hydrogen hexachloroplatinate $(IV)$
- Bdihydrogen hexachloroplatinate $(IV)$
- Chydrogen hexachloroplatinic $(IV)$ acid
- Dhexachloroplatinic $(IV)$ acid
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$(A)$ $\alpha$ -sulphur
$(B)$ $\beta$ -sulphur
$(C)$ $S _{2}$ -form
$[A]$ $\mathrm{Cr}_2 \mathrm{O}_3, \mathrm{BeO}, \mathrm{SnO}, \mathrm{SnO}_2$
$[B]$ $\mathrm{Cr}_2 \mathrm{O}_3, \mathrm{CrO}, \mathrm{SnO}, \mathrm{PbO}$
$[C]$ $\mathrm{NO}, \mathrm{B}_2 \mathrm{O}_3, \mathrm{PbO}, \mathrm{SnO}_2$
$[D]$ $\mathrm{ZnO}, \mathrm{Al}_2 \mathrm{O}_3, \mathrm{PbO}, \mathrm{PbO}_2$
(At. Nos. $Mn = 25, Cr = 24, V = 23, Ti = 22$ )