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The number of moles of oxygen obtained by the electrolytic decomposition of 90g water is :A. 1 moleB. 2.5 moleC. 2 moleD. Data sufficient |
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Answer» Correct Answer - B `H_(2)O to H_(2) + (1)/(2) O_(2)` `because` 18 gms of water gives 0.5 moles oxygen `because` 90 gms of water give `(0.5)/(18) xx 90 = 2.5` moles of oxygen |
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