# If A is the metallic salt, then the white ppt. of D must be of (A) Stronsium carbonate             (B) Red lead              (C) Barium carbonate        (D) Calcium carbonate

Dear Student,

The reaction scheme of A to D is expressed below,

$SrC{l}_{2}+N{a}_{2}C{O}_{3}\to SrC{O}_{3}\left(ppt\right)+NaCl$

The strontium carbonate forms insoluble solid of white precipitate hence the answer is Option (A)

Regards.

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