The correct order of acidic strength is________.

K_{2} O < C a O < S i O_{2} < C u O < C O_{2} < N_{2} O_{5}

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K_{2} O < C a O < C u O < S i O_{2} < C O_{2} < N_{2} O_{5}

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C a O < K_{2} O < S i O_{2} < C u O < C O_{2} N_{2} O_{5}

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K_{2} O < S i O_{2} < C a O < C u O < C O_{2} M N_{2} O_{5}

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Solution

The correct option is D $K_{2} O < C a O < C u O < S i O_{2} < C O_{2} < N_{2} O_{5}$
As difference in electronegativity between element and oxygen increases, acidic character decreases and basic character increases.

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