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JEE Main Chemistry question

ChemistryEquilibriumJEE Main

of a weak acid (HA) and of a weak base (BOH) are 3.2 and 3.4 respectively. The pH of their salt (AB) solution is .

Answer: 6.9

Solution

pH = 7+- = 7+(3.2-3.4) = 7-0.1 = 6.9

Question ID VK-136634