Tag: mineral coal

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Questions Related to mineral coal

Multiple choice chemistry rocks and minerals carbon cycling mineral coal coal and its products

Statement: Coal tar contains large number of aliphatic hydrocarbons.


State whether the given statement is true or false.State whether the given statement is true or false.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Coal tar contains a large number of aromatic hydrocarbons which in turn find applications in dyes, drugs, explosives, plastics, etc.


Hence, the given statement is $false$

Multiple choice chemistry rocks and minerals carbon cycling mineral coal coal and its products

Which two transportation means move nearly two-thirds of all U.S. coal shipments?

  1. railroads and barges

  2. barges and coal slurry pipelines

  3. trucks and covered conveyor systems

  4. railroads and trucks
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Most coal sent from mine to market travels either by railroad or by barge.  Railroads handle the most coal, which is the largest single commodity carried by the rail industry.  Barges operating along inland waterways and intercoastal and lake routes handle about 20 percent of domestic coal movements.  Railroads and barges combined move nearly two-thirds of all U.S. coal shipments.

Multiple choice chemistry rocks and minerals carbon cycling mineral coal coal and its products

The second largest market for coal is:

  1. export

  2. electricity generation

  3. the industrial and retail sector

  4. the iron and steel industry
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Coal has four major markets

(i) Electric utilities
(ii) Industrial/ Retail user
(iii) Steel industry
(iv) Exports
$\Rightarrow$ Electric utilities use more than $86$% of the coal.
$\Rightarrow$ Coals second largest market is industrial and retail users, among industries using coal, the largest consumers are chemical manufacturers.

Multiple choice chemistry rocks and minerals carbon cycling mineral coal coal and its products

Possibility of occurrence of coal in an area, is determined by study of

  1. Microfossils

  2. Ecology

  3. Economic botany

  4. Mining contents
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • Microfossils are fossils that are generally between 0.001 mm and 1mm size, the study of which requires the use of electron microscopy.
  • Coal, petroleum and natural gas are called fossil fuels because these were formed from the dead remains of living organisms (fossils).
  • Paleobotany is the study of fossil plants. 
  • Hence the possibility of occurrence of coal in an area,s determined by the study of microfossils (paleobotany).
  • So, the correct answer is 'Microfossils'.