The number of white coloured salts, among the following is (a) SrSO_4 (b) Mg(NH_4) PO_4 (c) BaCrO_4 (d) Mn(OH)_2 (e) PbSO_4 (f) PbCrO_4 (g) AgBr (h) PbI_2 (i) CaC_2 O_4 (j) [Fe(OH)_2(CH_3 COO)]

SrSO_4 - white \\ Mg(NH_4) PO_4 - white \\ BaCrO_4 - yellow \\ Mn(OH)_2 - white \\ PbSO_4 - white \\ PbCrO_4 - yellow \\ AgBr^- pale yellow \

The number of white coloured salts among the following is a : (Chemistry)

$\mathrm{SrSO}_4$ { - white } $\\$

$\mathrm{Mg}\left(\mathrm{NH}_4\right) \mathrm{PO}_4$ { - white } $\\$

$\mathrm{BaCrO}_4$ { - yellow } $\\$

$\mathrm{Mn}(\mathrm{OH})_2$ { - white } $\\$

$\mathrm{PbSO}_4$ { - white } $\\$

$\mathrm{PbCrO}_4$ { - yellow } $\\$

$\mathrm{AgBr}^{-}$ {pale yellow } $\\$

$\mathrm{PbI}_2$ { - yellow } $\\$

$\mathrm{CaC}_2 \mathrm{O}_4$ { - white } $\\$

$\left[\mathrm{Fe}(\mathrm{OH})_2\left(\mathrm{CH}_3 \mathrm{COO}\right)\right]$ { - Brown Red }