Coal and petroleum Worksheet-2
A. a by-product while extracting coal
B. a by-product in refining of petrol
C. a by-product of the process of manufacturing coke.
A. Plants and trees B. Tiny marine organisms
C. Shrubs D. Algae and fungi
A. Coke B. Coal tar
C. Coal gas D. None of these
A. Is inflammable gaseous fuel
B. Is obtained as a by-product of manufacture of coke
C. Was extensively used in 19th and 20th century for lightening cooking and heating
D. All of these
A. As fuel
B. As starting material for manufacture of dyes, explosives, plastics, paints
C. In the extraction of copper from its ore.
D. None of these
A. As byproduct of petroleum refining
B. From coke
C. From coal tar
D. From coal gas
A. Carbon dioxide B. Coal gas
C. Carbon monoxide D. Sulphur dioxide
C. Both Petrol and Diesel
A. Hydrocarbons B. Sulphur compounds
C. Nitrogen compounds D. Oxides
A. They have high boiling points
B. They have moderate boiling points
C. They have low boiling points
Explanation: It is a gaseous fuel obtained as a by-product of the process of manufacturing coke. Before the development of natural gas supplies, it was used as domestic and lighting fuel.
Explanation: Coke is produced by heating coal to a very high temperature in the absence of air. Coke is a grey hard porous rock. 98% of coke is carbon. It is largely used for extracting iron from its ore. It is also used in the manufacture of steel. Coke is a good fuel and burns without smoke.
Explanation: Petroleum or crude oil is a complex mixture of solid, liquid, and gaseous hydrocarbons
The boiling point of the liquid that collects at the bottom as residue has high boiling point.