A white precipitate was formed when $\mathrm{BaCl}_2$ was added to water extract of an inorganic salt. Further, a gas ' $X$ ' with characteristic odour was released when the formed white precipitate was dissolved in dilute HCl . The anion present in the inorganic salt is:
Hello 👋 Welcome to Competishun – India’s most trusted platform for JEE & NEET preparation. Need help with JEE / NEET courses, fees, batches, test series or free study material? Chat with us now 👇