17 JEE Main 2021 Ionic Equilibrium previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2021 previous-year questions from the Ionic Equilibrium chapter of Chemistry. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the Ionic Equilibrium chapter hub.
The solubility product of PbI 2 is 8 . 0 × 10 - 9 . The solubility of lead iodide in 0 . 1 molar solution of lead…
Sulphurous acid H 2 SO 3 has Ka 1 = 1 . 7 × 10 - 2 and Ka 2 = 6 . 4 × 10 - 8 . The pH of 0 . 588   M …
A solution is 0 . 1 M in Cl - and 0 . 001 M in CrO 4 2 - . Solid AgNO 3 is gradually added to it Assuming that the addi…
A 3 B 2 is a sparingly soluble salt of molar mass M g   mol - 1 and solubility x   g   L - 1 . The solub…
In order to prepare a buffer solution of pH 5 . 74 , sodium acetate is added to acetic acid. If the concentration of ac…
0 . 01 moles of a weak acid HA   K a = 2 . 0 × 10 - 6 is dissolved in 1 . 0   L of 0 . 1 M   HCl so…
The solubility of Ca OH 2 in water is : [Given : The solubility product of Ca OH 2 in water = 5 . 5 × 10 - 6 ]
The pH of a solution obtained by mixing 50   mL of 1   M   HCl and 30   mL of 1   M   NaO…
Assuming that Ba ( OH ) 2 is completely ionised in aqueous solution under the given conditions the concentration of H 3…
The pH of ammonium phosphate solution, if pk a of phosphoric acid and pk b of ammonium hydroxide are 5 . 23 and 4 . 75…
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