question_answer

Which of the following is/are the hazardous pollutant(s) present in automobile exhaust gases? (i) \[{{N}_{2}}\],                       (ii) CO (iii) \[C{{H}_{4}}\]                    (iv) Oxides of nitrogen

A)  (ii) and (iii)                   

B)  (i) and (ii)

C)  (ii) and (iv)            

D)         (i) and (iii)