Question

The energy stored in kerosene is:
A) Chemical
B) Heat energy
C) Magnetic
D) Mechanical

Answer 1

Hint
The answer can be found out by understanding the process used to extract the stored energy. Using Kerosene requires it to be burnt/combusted which is a chemical reaction. Hence the stored energy is chemical energy.

Complete step-by-step answer
Kerosene is a byproduct of the petroleum refinery when extracting petrol and other related compounds. It was discovered by Abhram Genser in the late 1840s and at that time it was mostly manufactured from coal tar. It is also known by the names as paraffin oil, lamp oil and coal oil. It is widely used as a fuel in aviation and household. It is characterized by its pale yellow or odorless color and it is not so pleasant. It is basically a mixture of hydrocarbons and hence its chemical composition is not fixed. A hydrocarbon stores energy in the form of interatomic or intermolecular bonding energy, which is also called chemical energy. Kerosene does the same and stores energy in this similar fashion only.
Therefore, the option with the correct solution is option A.

Note:
Another method would be to look at the options and eliminate the obviously wrong options. Here we know that where we are talking about kerosene the words like “magnetism” or “mechanical fluid” would never appear. So, we can assume that option (C) and (D) are eliminated. Heat from kerosene is still a sensible guess. However, kerosene can’t give heat by itself, so even Option (B) is out. Only sensible option remaining is Option (A).
Kerosene is different from diesel as it is lighter than the diesel. It is often called the #1 diesel due to lack of aromatic compounds in it. It can also be used in your DIESEL engine but only as an additive to the originally present diesel in it.