Verified Solution • 2025–26 Session moderate

QJEEM04Cha604: JEE Main 2004 Chemistry - Class 11 JEEM04Cha604 Solution: Among Al 2 O 3 , SiO 2 , P 2 O 3 and SO 2 the correct order of…

Among Al2O3, SiO2, P2O3 and SO2 the correct order of acid strength is

Multiple Choice Options

  • A SO2 < P2O3 < SiO2 < Al2O3
  • B Al2O3 < SiO2 < P2O3 < SO2
  • C Al2O3 < SiO2 < SO2 < P2O3
  • D SiO2 < SO2 < Al2O3 < P2O3

Step-by-Step Verified Solution

In periodic table from left to right (group 11 to group 1818 ) acidic strength increases.

AlAl belongs to group 13,13, SiSi belongs to group 14,14, PP belongs to group 1515 and SS belongs to group 1616 .

So,    Al2O3\,\,\,A{l_2}{O_3} will be least acidic and So2S{o_2} will most acidic among then.

So, right order will be

A{l_2}{O_3} &lt; Si{O_2} &lt; {P_2}{O_3} &lt; S{O_2}

Related Learning Resources & Exam Preparation