The ratio of weights of an element X and oxygen in the oxide of the element is 9:8. The formula of the oxide is X,O2. The atomic weight of X is
(a) 27 (c) 16 (b) 24 (d) 13.5
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14 g of an element X combines with 16 g of oxygen,then the element X could have an atomic weight of 7 amu and its oxide is X2O.
When the atomic weight is 7,14 g will correspond to 2 moles.
16 g of oxygen corresponds to 1 mole.
The formula X2O suggests the valency of 1 for x.
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