A salt with few drops of conc. HCl gives apple green colour in flame test. The group precipitate of the salt is dissolved in acetic acid and treated…

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