Which of the following nitrate salt solution neither produce ppt. with excess NaOH nor with excess `NH_(4)OH` solution?

Which of the following aqueous solution of cation(s) give(s) white ppt. with NaOH and NH_(4)OH solution and formed ppt. is/are further completely dissolve din one of the excess reagent?

Which of the following aqueous solution of cation(s) give(s) white ppt. with NaOH and NH_(4)OH solution and formed ppt. is/are further completely dissolved in one of the excess reagent?

Which of the following pair of cations cann be separated by excess NaOH solution?

Which of the following pair of cations cann be separated by excess NaOH solution?

Which of the following precipitate is soluble in excess of NH_(3) solution?

Which of the following precipitate is soluble in excess of NH_(3) solution?

Which of the following mixtures cann be separated by using excess NH_(3) solution?

Which of the following mixtures cann be separated by using excess NH_(3) solution?

Which of the following mixtures cann be separated by using excess NH_(3) solution?