How many of the following compounds are diamagnetic and colored ? 
${\mathrm{K}}_2{\mathrm{MnO}}_4, {\mathrm{Ag}}_2\mathrm{S}, {\mathrm{Hgl}}_2, {\mathrm{Hg}}_2{\mathrm{I}}_2, {\mathrm{Cr}}_2{\mathrm{O}}_3, {\mathrm{CuSO}}_4, \mathrm{HgS}, \mathrm{AgF}, \mathrm{AgO} \mathrm{and} {\mathrm{Ag}}_2\mathrm{O}$ 

Compounds that are paramagnetic and colored is:

${\mathrm{K}}_2{\mathrm{MnO}}_4 ,{\mathrm{Cr}}_2{\mathrm{O}}_3, \mathrm{AgO}, {\mathrm{CuSO}}_4$

Compounds that are diamagnetic and colored is:

$\underset{\left(\mathrm{Black}\right)}{{\mathrm{Hg}}_2{\mathrm{I}}_2}, \underset{\left(\mathrm{Red}\right)}{{\mathrm{Ag}}_2\mathrm{S}}, \underset{\left(\mathrm{Yellow}\right)}{{\mathrm{HgI}}_2}, \underset{\left(\mathrm{Brown}\right)}{{\mathrm{Ag}}_2\mathrm{O}}, \underset{\left(\mathrm{Black}\right)}{\mathrm{HgS}}, \underset{\left(\mathrm{Yellow}\right)}{\mathrm{AgF}}$