A Problem on Salt Analysis!

Chemistry Level 4

A colourless salt $$(A)$$,soluble in water,gives a mixture of three gases $$(B),(C),(D)$$ along with water vapours.$$(C)$$ is not oxidisable. $$(B)$$ turns red litmus blue,$$(C)$$ turns blue litmus red and gas$$(D)$$ is neutral towards litmus paper. Gas $$(B)$$ is also obtained when $$(A)$$ is heated with $$\ce{NaOH}$$ and gives brown ppt with $$\ce{{K}_{2}Hg{I}_{4}}$$. Solution thus obtained gives white ppt $$(E)$$ with $$\ce{Ca{Cl}_{2}}$$ solution in presence of $$\ce{C{H}_{3}COOH }$$. $$(E)$$ decolourises $$\ce{{Mn{O}_{4}}^{-}/{H}^{+}}$$. Gas $$(C)$$ turns lime water milky while gas $$(D)$$ burns with blue flame and is fatal when inhaled. Find the molecular mass of salt $$(A)$$.

Two more problems on Salt Analysis are as follows:

×