Two oxides of an element contain 57.1% and 72.7% of oxygen. If the fir

Two oxides of an element contain 57.1% and 72.7% of oxygen. If the first oxide is MO the second is : (1) M2O (2) MO2 (3) M2O2 (4) M2O3

Answer»

Correct option (2) MO₂

Explanation:

	Element (M)	Oxygen
1^stOxide (MO)	42.9 g	57.1 g
2^ndOxide (M_xO_y)	42.9 g	113.45 g

The ratio of oxygen which combine with fixed mass of Element (M) is 56.1 g : 113.45g i.e 1 : 2

Therefore the formula of two oxides of element is MO & MO₂ (2^ndOxide)

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Two oxides of an element contain 57.1% and 72.7% of oxygen. If the first oxide is MO the second is : (1) M2O (2) MO2 (3) M2O2 (4) M2O3

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