A salt with few drops of conc. \( \text{HCl} \) gives apple green colour in flame test. The group precipitate of the salt is dissolved in acetic acid and treated with \( \text{K}_2\text{CrO}_4 \) to give yellow precipitate. When the sodium carbonate extract of the salt solution is heated with conc. \( \text{HNO}_3 \) and ammonium molybdate, it resulted a canary yellow precipitate. The cation and anion present in the salt are respectively,
