Question

Material A is a fossil fuel extracted from the earth, formed from buried large land plants through a very slow process, B. When A is heated in the absence of air in process C, it produces three products: D, E, and F. Product D is utilized as a reducing agent in the extraction of metals, product E serves as an industrial fuel, while product F has traditionally been used for road metalling.

a. What might material A be?
b. What is the (i) physical state and (ii) color of A?
c. Name the processes (i) B and (ii) C.
d. What are (i) D, (ii) E, and (iii) F?

Answer 1

Material A is coal, which is heated in a process called pyrolysis or carbonization to produce products D (coke), E (coal gas), and F (coal tar).

Step-by-step explanation:

The material A described in the question is coal, which is a fossil fuel that is extracted from the earth and formed from buried large land plants over a long period of time. Coal is heated in the absence of air in a process called pyrolysis or carbonization, which produces three products: D, E, and F.

Product D, also known as coke, is utilized as a reducing agent in the extraction of metals. Product E, known as coal gas or producer gas, serves as an industrial fuel. Product F, referred to as coal tar, has traditionally been used for road metalling or paving.