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A white ppt. is obtained when:

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By Expert Faculty of Sri Chaitanya
a
A solution of BaCl2 is treated with Na2CO3
b
A solution of CaCl2 is treated with Na2SO3
c
A solution of ZnSO2 is treated with Na2S
d
A solution of PbNO32 is treated with Na2CrO4

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detailed solution

Correct option is A

Lear chromate is a yellow color compound

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