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Ionization Enthalpy

The order in ...

Question

The order in which the following oxides are arranged according to decreasing basic nature is:

N a_{2} O > M g O > A l_{2} O_{3} > S i O_{2}

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S i O_{2} > A l_{2} O_{3} > M g O > N a_{2} O

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A l_{2} O_{3} > S i O_{2} > M g O > N a_{2} O

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S i O_{2} > M g O > N a_{2} O > A l_{2} O_{3}

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Solution

The correct option is A $N a_{2} O > M g O > A l_{2} O_{3} > S i O_{2}$
As we know, along a period acidic nature of oxide increases. Hence, the basic character decreases.

$N a_{2} O > M g O > A l_{2} O_{3} > S i O_{2}$

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