NaX (Sodium salt of particular anion 'X') gives brisk effervescence of Y with dilute HCl.
Channel: Doubtnut
Date: 2020-04-12

NaX (Sodium salt of particular anion 'X') gives brisk effervescence of Y with dilute HCl. On heating, NaX evolves gas Y which can be completely absorbed in conc. KOH solution and is colorless odourless gas. Hence X and Y respectively are :