# A Problem on Salt Analysis! 3

Chemistry Level 4

$$(A)$$ is a salt with divalent cation. $$(A)$$ gives yellow ppt with $$\ce{{K}_{2}Cr{O}_{4}}$$ as well as with $$\ce{AgN{O}_{3}}$$. $$(A)$$ gives green colour in flame. $$(A)$$ is precipitated by $$\ce{{H}_{2}S}$$ neither in acidic nor ammonical medium, but addition of $$\ce{{(N{H}_{4})}_{2}C{O}_{3}}$$ in $$\ce{N{H}_{4}OH}$$ gave white ppt $$(B)$$. $$0.297\text{ g}$$ of $$(A)$$ gave $$0.197\text{ g}$$ of $$(B)$$. Find the molecular mass of $$(A)$$.

Two more problems on Salt Analysis are as follows:

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