The correct order of acidic strength is:

C a O < C u O < H_{2} O < C O_{2}

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H_{2} O < C u O < C a O < C O_{2}

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C a O < H_{2} O < C u O < C O_{2}

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H_{2} O < C O_{2} < C a O < C u O

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Solution

The correct option is A $C a O < C u O < H_{2} O < C O_{2}$
Among the following, $C a O$ is the strongest base, $C O_{2}$ is acidic and $C u O$ is a stronger base than $H_{2} O$ .
So, the order of acidic strength is: $C a O < C u O < H_{2} O < C O_{2}$

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Similar questions

C O_{2}, C u O, C a O and H_{2} O

C O_{2}, C u O, C a O

H_{2} O

Identify the correct order of acidic strength of $C O_{2}$ , $C u O$ , $C a O$ , and $H_{2} O$ :

C O_{2}, C u O, C a O, H_{2} O :

C O_{2}, C a O, H_{2} O

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