A white substance, when strongly heated, leaves a residue which is yel – InterviewSolution

1.	A white substance, when strongly heated, leaves a residue which is yellow while hot and white when cold, and gives a gas that turns baryta water milky and accidified dichromate paper green. The substance can be
Answer» `ZnCO_(3)` `ZnSO_(3)` `Na_(2)S` `BSO_(3)` ANSWER :B

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