Q: 87 (NDA-II/2010)

Neutral water with pH about 7 becomes slightly acidic when aerated. This is because
question_subject: 
Science
question_exam: 
NDA-II
stats: 
0,15,35,19,6,10,15
keywords: 
{'neutral water': [0, 0, 1, 0], 'aeration': [0, 0, 2, 0], 'ph': [3, 0, 3, 3], 'water molecules': [0, 0, 1, 0], 'water': [65, 15, 80, 129], 'ultraviolet radiation': [1, 0, 1, 0], 'oxygen': [3, 0, 1, 0]}

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