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A solution of a colourless salt in conc. HCl on dilution with water gives white ppt. it is due to
A. `Ag^(+)`
B. `Pb^(2+)`
C. `Hg^(+)`
D. none of these

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`SbCl_(3)` and `BiCl_3` are soluble in conc. HCl. On dilution with water white ppt. of SbOCl and `BiOCl_2` are obtained. It is not due to Group I
`SbCl_(3)+H_(2)O to underset("white ppt.")(SbOCl) +2HCl`
`BiCl_(3)+H_(2)O to underset("White ppt.")(BiOCl)+2HCl`

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