JEE Main 2024 Chemistry question
Match List-I with List-II: List-I (Precipitating reagent and conditions): A. NH₄Cl + NH₄OH B. NH₄OH + Na₂CO₃ C. NH₄OH + NH₄Cl + H₂S gas D. dilute HCl List-II (Cation): I. Mn²⁺ II. Pb²⁺ III. Al³⁺ IV. Sr²⁺ Choose the correct answer from the options given below:
Answer: (C)
Solution
Group III (Al³⁺) with NH₄Cl/NH₄OH; group IV (Mn²⁺) with H₂S in ammoniacal medium; group V (Sr²⁺) as carbonate; group I (Pb²⁺) with dil. HCl.