X is a crystalline salt of sodium solution of X in water ...
X is a crystalline salt of sodium solution of X in water turns litmus red and produces a gas which turns lime water milky when added to sodium carbonate. With barium chloride solution, X gives hydrochloric acid. X is
Na 2CO 3
NaHCO 3
NaHSO 4
Na 2SO 4
Correct answer is C
No explanation has been provided for this answer.
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