NEET Exam Model Paper 6

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Question : 61 of 180
 
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Lemon juice normally has a pH of 2. If all the acid in the lemon juice is citric acid and there are no citrate salts present, then what will be the citric acid(H.cit) concentration in the lemon juice? (Assume that only the first hydrogen of citric acid is important).
(H.Cit⇌H++Cit−,Ka1=8.4×10−4mollit−1)
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