NEET Chemistry The p-Block Elements (XII) Questions Solved


Which among the following is least acidic

(A) P4O6 

(B) P4O10 

(C) As4O6 

(D) As4O10 

The acidic strength of oxides decreases on moving down the group.Moreover, pentoxides are more acidic than trioxides. As the atomic no. of an element in 15 group increases, the acidic character decreases.

So,  P4O10 > As4O6 and P4O10 > As4O10 . Due to increase in O.N. of an element acidic nature increases.Thus decreasing order of acidic strength is P4O10 > P4O6  > As4O10 > As4O6 

 

Difficulty Level:

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