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Question Paper from: IIT JEE Main 2021 TestSeries Paper 1

A metal exists as an oxide with the formula M_0.96O. Metal M can exist as M⁺² and M⁺³ in its oxide M_0.96O. The percentage of M⁺³ in the oxide is nearly.

9.6%

8.3%

4.6%

Solution:

Chapter Name: Solid State

Difficulty Level: Moderate

M_100*0.96O_100*1

M₉₆O₁₀₀

Let M₊₃ is x.

Balancing the charge

3*x + (96 - x)*2 = 100*2

3x + 192 -2x = 200

x = 8

$\frac{8}{96} \times 100 = 8.3$ %

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IIT JEE Main 2021 TestSeries Paper 1

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