a Soft Hard
o Thin d Hot
11. Coal can be used as a
o Puntier
c Fuel d Insecticide
12. Other uses of fuel includes
a. Produce steam to run engine Produce electricity in thermal power plants
Fuel in various industries
d. All of these
18 Coal mainly contains
a. Hidrogen b. Owygen
G Carbon
14 Carbonisation is
a. Slow conversion of dend vegetation into al b. Deposition of soil
cfalling of trees d. None of these
15. When heated in air produces
a. Carbon monoxide Carbon dioxide
G Nitrogen dioxide d. Oxygen
16. Coal is produced in industry to get
& Coke
Coal gas
d. All of these
17. Coke is used in the manufacturing of
a. Leadb, Iron
c. steel d. Copper
18. Which is an almost pure form of carbon?
a. Coke
b. Coal tar
c Coal gas
d. None of these
19. The characteristic of coal is
a tough b. Black in colour
c. Porous d. All of these
20. Coal tar has an
smell.
a. Unpleasant b. Pleasant
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better you ask whole book
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what is this?? please type it again in easily understandable words!
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