Tag: occurrence of carbon compounds in nature

Questions Related to occurrence of carbon compounds in nature

Which of the following is/are the method(s) of controlling hydrocarbons from production?

chemistry occurrence of carbon compounds in nature substances, objects and energy alternative fuels and energy sources alternative sources of energy

  1. Adsorption

  2. Condensation

  3. Gas Absorption

  4. All of the above

Show answer
Correct Option: D
Explanation:

The methods of controlling hydrocarbons from production are

  1. Adsorption
  2. Condensation
  3. Gas absorption

What is the effect of strike of unions in oil producing companies?

chemistry occurrence of carbon compounds in nature substances, objects and energy alternative fuels and energy sources alternative sources of energy

  1. decrease in price of oil

  2. cause an energy crisis.

  3. suspension of unions by Govt.

  4. increase in the selling of cars

Show answer
Correct Option: B
Explanation:

A strike by unions in an oil producing firm can definitely cause an energy crisis.

What are the disadvantages of renewable energy?

chemistry occurrence of carbon compounds in nature substances, objects and energy alternative fuels and energy sources alternative sources of energy

  1. They are eco-friendly

  2. They cannot be used in war

  3. Proper equipment to convert those energy into useful form is not available easily

  4. They are non-renewable

Show answer
Correct Option: C
Explanation:

There are many advantages of renewable energy but the only disadvantage is that proper equipment for their conversion are not easily available. Either they are very costly or not easily available.

Which of the following measures can help in controlling hydro carbon pollution

chemistry occurrence of carbon compounds in nature substances, objects and energy alternative fuels and energy sources alternative sources of energy

  1. Less usage of automobile

  2. controlling population

  3. A,B

  4. Nne

Show answer
Correct Option: C
Explanation:

Less usage of automobiles and controlling population he following measures can help in controlling hydro carbon pollution
Hence option C is the correct answer.

Hydrogen is a cleaner fuel than $CNG.$ 

chemistry occurrence of carbon compounds in nature substances, objects and energy alternative fuels and energy sources alternative sources of energy

  1. True

  2. False

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Correct Option: A
Explanation:

Hydrogen gas is cleaner fuel than $CNG$ as $CNG$ contains hydrocarbons which in turn contains carbon and it is a form of pollutant present in $CNG.$  But hydrogen is waste-free. The fusion of hydrogen does not produce any waste and therefore it is cleaner than $CNG.$

The medium which retains and interacts with a pollutant is:

chemistry occurrence of carbon compounds in nature substances, objects and energy alternative fuels and energy sources alternative sources of energy

  1. receptor

  2. sink

  3. both $A$ and $B$

  4. system

Show answer
Correct Option: B
Explanation:

Sink acts as a medium which retains and interacts with a pollutant.

Biofuels are different from fossil fuels in regard to greenhouse gases but are similar to fossil fuels in that biofuels contribute to air pollution

chemistry occurrence of carbon compounds in nature substances, objects and energy alternative fuels and energy sources alternative sources of energy

  1. True

  2. False

Show answer
Correct Option: A
Explanation:

Fuels extracted from plants and crops are known as biofuels. They not only help a struggling economy by providing jobs but also helps in reducing greenhouse gases up to much extent by emitting less pollution. 

Biofuels are produced from wheat, corn, soybean, and sugarcane which can be produced again and again and thus they are sustainable.
Like fossil fuel, biofuel also causes air pollution.

A liquid fuel used in homes is:

chemistry occurrence of carbon compounds in nature substances, objects and energy alternative fuels and energy sources alternative sources of energy

  1. Water

  2. LPG

  3. CNG

  4. Cooking oil

Show answer
Correct Option: D
Explanation:

Cooking oil or Vegetable oil can be used as an alternative fuel in diesel engines and in heating oil burners. When vegetable oil is used directly as a fuel, in either modified or unmodified equipment, it is referred to as straight vegetable oil (SVO) or pure plant oil (PPO). Conventional diesel engines can be modified to help ensure that the viscosity of the vegetable oil is low enough to allow proper atomization of the fuel. This prevents incomplete combustion, which would damage the engine by causing a build-up of carbon. Straight vegetable oil can also be blended with conventional diesel or processed into biodiesel or bioliquids for use under a wider range of conditions.

Hence, the correct option is $D$

Biomass can be converted into fuels by:

chemistry occurrence of carbon compounds in nature substances, objects and energy alternative fuels and energy sources alternative sources of energy

  1. thermal conversion

  2. biochemical conversion

  3. chemical conversion

  4. all of the above

Show answer
Correct Option: D
Explanation:

Biomass is an organic material that comes from plants and animals and it is a renewable source of energy.

This biomass can be converted into fuels by thermal conversion, biochemical conversion, and chemical conversion as well.

Which is the ultimate source of energy? 

chemistry occurrence of carbon compounds in nature substances, objects and energy alternative fuels and energy sources alternative sources of energy

  1. Sun

  2. Uranium

  3. Fossil fuels

  4. Water

Show answer
Correct Option: A
Explanation:

The ultimate source of energy is Sun because it is continuously providing us with energy and is the source of all other energies like light energy, heat energy, etc.