Tag: coal, petroleum and petrochemicals
Questions Related to coal, petroleum and petrochemicals
Lignite is:
Which of the following type of coal is having lowest carbon content and heating value.
What chemical reaction makes biodiesel?
Which is the primary state in transformation of coal?
The calorific value of lignite is about _____ kJ/g.
Select the correct statement from the given:
Which among the following coal contains highest $\%$ of Carbon?
The highest grade of coal, whose surface is shining and has the highest calorific value, is:
Properties of one of the mineral coal is given below. Identify the mineral coal.
(1) It is a matured form of mineral coal.
(2) It contains 94% to 98% carbon.
(3) Its heat energy is about $33\, kJ \,gram^{-1}$
(3) Its heat energy is about $33\, kJ \,gram^{-1}$
Which of the following substances is used in refining of petroleum?