Question

When hydrogen is burned as a fuel, the primary waste product produced is ________.

A) carbon monoxide
B) Cl₃
C) H₂O
D) hydrocarbons and Cl₃
E) Cl₃ and H₂O

Answer 1

The primary waste product produced when hydrogen is burned as a fuel is water (H₂O).

Step-by-step explanation:

The primary waste product produced when hydrogen is burned as a fuel is water (H₂O).

In the combustion reaction of hydrogen gas (H₂) with oxygen gas (O₂), the hydrogen reacts with the oxygen to form water vapor as the main product:

2H₂(g) + O₂(g) → 2H₂O(g)

This reaction is highly exothermic and releases a large amount of heat energy.