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JEE Main Chemistry question

ChemistryEquilibriumJEE Main

Which pair cannot exist together in solution? [UP SEE 2003]

Answer: (A)

Solution

, being more acidic than , reacts with in solution: NaHCO_3 + NaOH \to Na_2CO_3 + H_2O, so the two cannot coexist. with or with ,

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Question ID VK-137562