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Question: Important constituents of petroleum is/are: a.) LPG b.) Petrol c.) Kerosene d.) All of these...

Important constituents of petroleum is/are:
a.) LPG
b.) Petrol
c.) Kerosene
d.) All of these

Explanation

Solution

Hint: Petroleum is a mixture of a large number of different types of hydrocarbons. The most commonly found chemicals or hydrocarbons in petroleum are alkanes (paraffin), cycloalkanes (naphthenes), aromatic hydrocarbons (like benzene), or more complicated chemicals like asphaltenes. By the process of fractional distillation the above mentioned hydrocarbons can be separated.
Complete answer:
By using the process called as fractional distillation all the products from petroleum can be separated.
The products obtained from petroleum through fractional distillation are, Asphalt, Paraffin Wax, lubricating oil, fuel oil, Kerosene, Gasoline, and petroleum gas.
All the products are separated from petroleum based on their boiling points.
The compounds which have low boiling point are separated first after that the remaining hydrocarbons.
Coming to the given options, option A, LPG is a product obtained from petroleum.
Option B, Petrol, it is a byproduct from petroleum.
Option C, Kerosene, it is also a byproduct obtained from petroleum.
Option D, All of these.
So, the correct option is D.

Note: Don’t be confused with the words, gasoline and petrol, petrol and petroleum.
Gasoline and petrol both are the same.
Petrol and petroleum both are not the same, because petrol is one of the byproducts which is obtained from petroleum.
Petroleum is a crude oil obtained from earth crust containing more than 20 types of hydrocarbons.
At the time of fractional distillation of petroleum, petrol is obtained as one of the byproducts.