\(\mathrm{X}\) is crystalline salt of sodium. Solution of \(\mathrm{X}\) in water turns litmus red produces a gas which turns time water milky when added to sodium carbonate. With barium chloride solution, X glves a which precipltate which is insoluble in dilute hydrochloric acid. \(X\) is ____________
A. \(\mathrm{Na}_{2} \mathrm{CO}_{3}\) B. \(\mathrm{NaHCO}_{3}\) C. \(\mathrm{NaHSO}_{4}\) D. \(\mathrm{Na}_{2} \mathrm{O}_{3}\) E. \(\mathrm{Na}_{2} \mathrm{SO}_{4}\)
