X $_{2}$ O $_{3}$ is produced if ratio of element to oxygen is 2:3 in the reaction of element and oxygen,what is that element?

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Solution

The correct option is B Al
$X_{2} O_{3}$ is produced if ratio of element to oxygen is 2:3 in the reaction of element and oxygen, that element is Aluminum (Al). It forms $A l_{2} O_{3}$ . The valence of Al (and X) is +3 and that of oxygen is -2.
Ca, Li, F and C have valencies +2, +1, -1 and 4 respectively.

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X2O3 is produced if ratio of element to oxygen is 2:3 in the reaction of element and oxygen,what is that element?

The correct option is B AlX2O3 is produced if ratio of element to oxygen is 2:3 in the reaction of element and oxygen, that element is Aluminum (Al). It forms Al2O3 . The valence of Al (and X) is +3 and that of oxygen is -2.Ca, Li, F and C have valencies +2, +1, -1 and 4 respectively.

X $_{2}$ O $_{3}$ is produced if ratio of element to oxygen is 2:3 in the reaction of element and oxygen,what is that element?