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The substance A is a fossil fuel. It occurs deep below the earth's crust in
certain areas . Another fossil fuel B is found above the substance A. When A is
subjected to a process C, a number of different products (fractions) are collected
at different temperature ranges which have different uses. A special grade of
proeduct D obtained in this process is used as fuel in home. The product D is an
ideal fuel .
Now give the answer of the following questions.
(a) What are the substances, A and B?
(b) Write the physical states of substances A and B.
(c) What is the process C called?
(d) Name the product D.
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The substance A is a fossil fuel. It occurs deep below the earth's crust in
certain areas . Another fossil fuel B is found above the substance A. When A is
subjected to a process C, a number of different products (fractions) are collected
at different temperature ranges which have different uses. A special grade of
proeduct D obtained in this process is used as fuel in home. The product D is an
ideal fuel .
Now give the answer of the following questions.
(a) What are the substances, A and B?
(b) Write the physical states of substances A and B.
(c) What is the process C called?
(d) Name the product D.
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