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Two oxides of a metal contain 50% and 40...

Two oxides of a metal contain 50% and 40% metal (M) respectively. If formula of first oxide is MO2, the formula of second oxide will be

A

`M_2 O_4`

B

`MO_3`

C

`M_2O`

D

`M_2 O_5`

Text Solution

Verified by Experts

The correct Answer is:
B
First oxide is `MO_2` containing 50% of oxygen (32 g)
` therefore ` Metal contained is also 32 g.
Atomic mass of metal =`(" Weight ")/( " number of moles ") =(32)/(1) =32`
second oxide :

Empirical formula = `MO_3`
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