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JEE Main Chemistry question

ChemistryEquilibriumJEE Main

From separate solutions of four sodium salts NaW, NaX, NaY and NaZ had pH 7.0, 9.0, 10.0 and 11.0 respectively. When each solution was 0.1 M, the strongest acid is:

Answer: (A)

Solution

NaW's neutral pH (no hydrolysis) indicates HW is a strong acid; the increasing

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Question ID VK-136335