Factor for hole in ozone layer- (A) Aerosol (B) Gel sol (C) SO2,SO3 (D) CO, CO2

Which one of the following act as both Lewis acid and Lewis base (A) SO_(2) (B) CO (c) BCl_(3) (D) CO_(2)

Give the characteristic tests for the following gases : (a) CO_(2) (b) SO_(2) (c) O_(2) (d) H_(2)

Which of the following is a mixed anhydride (A) P_4O_10 , (B) SO_3 , ( C) Cl_2O_6 , (D) SO_2

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

In which of the following compounds resonance does not occurs (a) H_2O (b) SiO_2 (c ) SO_2 (d) CO_2

which of the following secondary pollutants ? (a) CO_2 (b) ozone (c) PAN (d) CO

Which of the following is/are responsible for photochemical smog formation? (A) CO_(2) (B) SO_(2) (C) NO (D) hydrocarbons. The correct answer is

Define the following : (a) Sol (b) aerosol ( c) emulsion (d) foam Give one example of each .