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JEE Main Chemistry question

ChemistryEquilibriumJEE Main

An acid-base indicator has value of . The acid form of this indicator is red and the basic form is blue. The change in required to change the indicator from 60% red to 60% blue is mol/L. Find the value of .

Answer: 3

Solution

At 60% red (40% blue): , so At 60% blue (40% red):

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Question ID VK-136621