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Consider the following statements (a) The pH of a mixture containing 400 mL of 0.1 M H 2 SO 4 and 400 mL of 0.1 M NaOH will be approximately 1.3 (b) Ionic product of water is temperature dependent. (c) A monobasic acid with K a = 10 –5 has pH = 5. The degree of dissociation of this acid is 50 %. (d) The Le Chatelier's principle is not applicable to common-ion effect. The correct statements are :

1. (a) and (b)
2. (a), (b) and (c)
3. (a), (b) and (d)
4. (b) and (c)

Correct answer: (a), (b) and (c)

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