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# An aqueous solution of salt gives white precipitate with $AgNO_3$ solution as well as with dil $H_2SO_4$. It may be

(a) $Pb(NO_3)_2$
(b) $Bs(NO_3)_2$
(c) $BaCl_2$
(d) $CuCl_2$

Answer: $BaCl_2$

$BaCl_2 + 2AgNO_3 \rightarrow 2AgCl \downarrow$ (white ppt.) $+ BaNO_3$
$BaCl_2 + H_2SO_4$ (Dil. Sulphuric acid) $\rightarrow BaSO_4 \downarrow$ (white ppt.) $+ 2HCl$