Barium sulphate on fusion charcoal and sodium carbonate yields a compound `(X).(X)` on reaction with dilute HCl liberates a gas `(Y)`. The gas `(Y)` can be identified by `:`A. blackening of filter paper moistened with lead acetate solution.B. turning the filter paper yellow moistened with cadmium acetate solution.C. turning the filter paper purple moistened with sodium nitroprusside made alkaline with ammonia solutionD. all of these

Barium sulphate on fusion charcoal and sodium carbonate yields a compo

1.	Barium sulphate on fusion charcoal and sodium carbonate yields a compound `(X).(X)` on reaction with dilute HCl liberates a gas `(Y)`. The gas `(Y)` can be identified by `:`A. blackening of filter paper moistened with lead acetate solution.B. turning the filter paper yellow moistened with cadmium acetate solution.C. turning the filter paper purple moistened with sodium nitroprusside made alkaline with ammonia solutionD. all of these
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