WCH11 June 2022

16.​​ Which of these atmospheric pollutants is not emitted during the combustion of alkane car fuels?​​ 

A ammonia​​ 

B nitrogen dioxide​​ 

C sulfur dioxide​​ 

D octane

ANSWER

A​​  ammonia​​ 

Analysis of Option/Explanation

Complete combustion of alkane release CO2, H2O, NO2​​ and un-burnt hydrocarbon (e.g. octane). Hence, the option A i.e. ammonia is not released during combustion of alkane as required by question. Therefore, option A is the correct answer.