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1.25 g of a metal (M) reacts with oxygen completely to produce 1.68 g of metal oxide.

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1.25 g of a metal (M) reacts with oxygen completely to produce 1.68 g of metal oxide. The empirical formula of the metal oxide is  

[molar mass of M and O are 69.7 g mol–1 and 16.0 g mol–1, respectively] 

(A) M2O 

(B) M2O3 

(C) MO2 

(D) M3O4

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Correct Option :-  (B) M2O3

Explanation :-

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