NEET Principles of Qualitative Analysis PYQ practice sheet

2 previous-year NEET Chemistry questions from Principles of Qualitative Analysis, newest papers first. Principles of Qualitative Analysis carries 3 of the Chemistry questions in NEET 2020 to 2026, so this is a good place to test yourself after revising the chapter. Marking: +4 correct, −1 wrong.

1. 1.

   NEET 2026

   In a test tube containing a salt, a few drops of dilute $\mathrm{H_2SO_4}$ was added, which gave colourless vapours having the smell of vinegar. The vapours turned the blue litmus paper red. Identify the correct anion from the following:

   • (A)
     Sulphate, $\mathrm{SO_4^{2-}}$
   • (B)
     Acetate, $\mathrm{CH_3COO^-}$
   • (C)
     Carbonate, $\mathrm{CO_3^{2-}}$
   • (D)
     Sulphide, $\mathrm{S^{2-}}$
2. 2.

   NEET 2024

   Given below are certain cations. Using inorganic qualitative analysis, arrange them in increasing group number from 0 to VI. A. $\mathrm{Al^{3+}}$ B. $\mathrm{Cu^{2+}}$ C. $\mathrm{Ba^{2+}}$ D. $\mathrm{Co^{2+}}$ E. $\mathrm{Mg^{2+}}$ Choose the correct answer from the option given below:

   • (A)
     B, C, A, D, E
   • (B)
     E, C, D, B, A
   • (C)
     E, A, B, C, D
   • (D)
     B, A, D, C, E