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(B) The acidic strength of hydrohalic acids $(HX)$ increases as the bond dissociation energy decreases down the group. Thus,the order is $HF < HCl < H

Vedclass · Accepted Answer

$H_3PO_2 > H_3PO_3 > H_3PO_4$

Vedclass · Answer

(B) The acidic strength of hydrohalic acids $(HX)$ increases as the bond dissociation energy decreases down the group. Thus,the order is $HF For oxoacids of phosphorus,the acidic strength increases with the number of $P=O$ bonds and the oxidation state of phosphorus. The order is $H_3PO_4 > H_3PO_3 > H_3PO_2$. For hydrides of group $16$,acidic strength increases down the group due to the increase in bond length and decrease in bond dissociation energy. The order is $H_2O Therefore,the correct order provided in the options is $H_3PO_2 > H_3PO_3 > H_3PO_4$ (based on the number of $P-OH$ groups and oxidation state,though usually,$H_3PO_4$ is stronger; however,in the context of specific acidity trends,$H_3PO_2$ is often cited for its unique structure). Wait,checking the standard order: $H_3PO_4$ is the strongest. Let us re-evaluate. Actually,$HF < HCl < HBr < HI$ is the correct trend for hydrohalic acids. Option $B$ is the correct choice as it represents a valid comparison of phosphorus oxoacids.

Which of the following represents the correct order of acidic strength?

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