`("White ppt")D underset(dil. H_(2)SO_(4))overset(Na_(2)CO_(3))(larr) underset("C(White ppt)")underset(darr)

`("White ppt")D underset(dil. H_(2)SO_(4))overset(Na_(2)CO_(3))(larr) underset("C(White ppt)")underset(darr)A underset("(in acetic acid)")overset(K_(2)CrO_(4))(rarr)B("Yellow ppt")`
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

`("White ppt")D underset(dil. H_(2)SO_(4))overset(Na_(2)CO_(3))(larr) underset("C(White ppt)")underset(darr)A underset("(in acetic acid)")overset(K_(2

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