Q3 of 32 Page 73

Name the product of coal which is thick black liquid having an unpleasant smell.

Coal tar is the product of coal which is thick black liquid having an unpleasant smell. Coal tar is a mixture of 200 substances.


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1

Coal, petroleum and natural gas are known as non-renewable sources. Why?

 2

Name the important source from which naphthalene balls are obtained.

 1

Why does petrol burn faster than coal?

 2

Name the two products of petroleum which are not used as fuels.