Increasing order of acidic character is
(A) \(SO_{3} > N_{2}O_{5} > CO_{2} > SiO_{2}\)
(B) \(SO_{3} < N_{2}O_{5} < CO_{2} < SiO_{2}\)
(C) \(SO_{3} < N_{2}O_{5} > CO_{2} < SiO_{2}\)
(D) \(SO_{3} > N_{2}O_{5} < CO_{2} < SiO_{2}\)

Statement-1: The decreasing order of acidic character of CO_(2),N_(2)O_(5),SiO_(2) and SO_(3) is SO_(3) gt N_(2)O_(5) gt CO_(2) gt SiO_(2) . Statement-2: As electronegativity difference (E-O) decreases, acidic character of the oxide increases.

Statement-1: The decreasing order of acidi character of CO_(2),N_(2)O_(5),SiO_(2) and SO_(3) is SO_(3) gt N_(2)O_(5) gt CO_(2) gt SiO_(2) . Statement-2: Oxides of the metals are generally basic and oxides of the non-metals are acidic.

Assertion: the decreasing order of acidic character of CO_(2),N_(2)O_(5),SiO_(2) and SO_(3) is SO_(3) gt N_(2)O_(5) gt CO_(2) gt SiO_(2) . Reason: Acidic character of oxides increases on moving top of bottom in a group and decreases on moving left to right in a periodic in modern periodic table.

Oleum is a mixture of \(H_{2}SO_{4}\)+\(SO_{2}\) \(H_{2}SO_{4}\)+\(SO_{3}\) \(H_{2}S_{2}O_{3}\)+\(SO_{3}\) \(H_{2}S_{2}O_{3}\)+\(SO_{2}\)

Arrange the following oxides in order of increasing acidic character: SO_3, Cl_2O_7, CaO and PbO_2.

Major contributors to acid rain are : (P) CO_(2) , (Q) SO_(2) (R) NO_(2) , (S) SO_(3)