Question

Which one of the following is present in the emission from “unleaded petrol”?  

A.  carbon monoxide 
B.  carbon dioxide 
C.  ethylene 
D.  hydrocarbons

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Answer 1

Answer:

hydrocarbons is present in the emission from unleaded petrol.

Answer 2

Answer:

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Answer - hydrocarbons

Explanation:

• current unleaded petrol emits carbon dioxide and some amount of controlled hydrocarbons.
• Carbon monoxide has been totally eliminated with better engine designs and controlled combustion using four stroke engines.