Which one of the following gases gives acidic solution on dissolving in water ?

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Q: 91 (NDA-II/2016)

Which one of the following gases gives acidic solution on dissolving in water ?

question_subject: 

Science

question_exam: 

NDA-II

stats: 

0,31,41,18,37,12,5

keywords: 

{'acidic solution': [0, 0, 0, 1], 'gases': [0, 0, 5, 12], 'hydrogen': [0, 0, 1, 3], 'carbondioxide': [0, 0, 0, 1], 'oxygen': [3, 0, 1, 0], 'nitrogen': [1, 1, 0, 2], 'water': [65, 15, 80, 129]}