Which of the following is used as a rocket fuel?
Due to its unique powerful oxidizing nature, Nitric acid is often used in rocket fuels as a propeller. Please be aware that nitric acid alone isn’t the rocket fuel, specially refined kerosene, nitric acid or liquid oxygen acting as the oxidizer, is the rocket fuel.
Now, you may be asking, what is an oxidizer in rocket fuel? Well, an oxidizer is the substitute for oxygen in space where oxygen is absent. Our atmosphere naturally contain oxygen which is very essential for combustion to occur, but this is not so in space where other gasses are prevalent. Therefore, a complete rocket propeller must have both the fuel, which is a special kind of kerosene, and its own oxidizer.
Now for the right answer to the above question:
- Option A is correct.
- Option B is incorrect. ethanoic acid not a proper oxidant.
- C is incorrect. sulphuric acid, not a proper oxidant.
- D is not the correct answer. Hydrogen chloride, not a worthy oxidant.
You may please note these/this:
- Nitric acid was a major components of rocket engines used in war missiles to oxidize the hydrocarbon fuel when in outer space where oxygen is scarce.
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/ culled from 2015 JAMB-UTME Chemistry past question 33 /