Tag: petroleum and natural gas

Questions Related to petroleum and natural gas

Octane number is a scale for counting?

chemistry energy rocks and minerals petroleum and natural gas fossil fuels

  1. the quantity of water present in alcohol.

  2. the percentage of liquefied petroleum gas in a given sample of petrol.

  3. the quality of petrol

  4. the number of different hydrocarbons present in a sample of petrol.

Show answer
Correct Option: C
Explanation:

Octane rating or octane number is a standard measure of the performance of a motor- or aviation fuel. The higher the octane number, the more compression the fuel can withstand. fuels with a higher octane rating are used in high performance petrol engines that require higher compression ratios. thus it reflects the quality of fuel.

Quality of a diesel is measured in terms of its?

chemistry energy rocks and minerals petroleum and natural gas fossil fuels

  1. Cetane number

  2. Octane number

  3. Gold number

  4. Avogadro number

Show answer
Correct Option: A
Explanation:

A cetane number is the measure of the quality of the diesel . Higher cetane number indicates that the fuel ignites more readily when sprayed over hot compressed air.

Which of the following is present in the heavy oil obtained during petroleum distillation ?

chemistry energy rocks and minerals petroleum and natural gas fossil fuels

  1. Gas oil

  2. Fuel oil

  3. Diesel oil

  4. All of these

Show answer
Correct Option: D
Explanation:

The following fuels are present in the heavy oil obtained during petroleum distillation 1. Gas oil  2.Fuel oil and Diesel oil.

So all the given options are correct.

Hence option D is correct.

Complete removal of ______ from gasoline is done by Unisol process using caustic soda and methyl alcohol. 

chemistry energy rocks and minerals petroleum and natural gas fossil fuels

  1. asphalt

  2. mercaptans

  3. diolefins

  4. waxes

Show answer
Correct Option: B
Explanation:

Unisol process is a regenerative method for not only extracting or removing mercaptans but also some of the nitrogen compounds. In this process first gasoline is washed counter-currently with aqueous caustic methanol solution. The spent caustic is regenerated in a stripping tower where the methanol, water and mercaptans are extracted.

LPG is ______________________.

chemistry rocks and minerals petroleum properties of alkanes petroleum and natural gas

  1. liquified petroleum gas

  2. liquified paraffin gas

  3. liquid petroleum gas

  4. liquid paraffin gas

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Correct Option: A
Explanation:

LPG is liquified petroleum gas used for cooking purpose.

Main component of C.N.G is

chemistry rocks and minerals petroleum properties of alkanes petroleum and natural gas

  1. butane

  2. methane

  3. hydrogen

  4. coal gas

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Correct Option: B
Explanation:

Main component of CNG is methane (the simplest alkane). the other components present are:

  • ethane
  • propane
  • nitrogen
  • carbon dioxide
  • hydrogen sulphide
  • traces of water

Generally natural gas is associated with the following

chemistry rocks and minerals petroleum properties of alkanes petroleum and natural gas

  1. oil fields

  2. coal fields

  3. a and b

  4. minerals

Show answer
Correct Option: C
Explanation:

Natural gas is found in deep underground rock formations in coal beds and in oil beds.

By undergoing what process, chemical fuel releases its energy?

chemistry rocks and minerals petroleum properties of alkanes petroleum and natural gas

  1. Reduction

  2. Oxidation

  3. Electrolysis

  4. Redox reaction

Show answer
Correct Option: B
Explanation:

Chemical fuels react with oxygen (combustion) and releases their energy.

Choose the odd one out from the following and give reason for your choice.

chemistry rocks and minerals petroleum properties of alkanes petroleum and natural gas

  1. Natural Gas

  2. Sun

  3. Biomass

  4. Wind

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Correct Option: A
Explanation:

Sun, Biomass, Wind are renewable sources which can be replenished within human lifeitme. Whereas natural gas is non-renewable source.

LPG is ___________ .

chemistry rocks and minerals petroleum properties of alkanes petroleum and natural gas

  1. Liquefied petroleum gas

  2. Low petroleum gas

  3. Liquid pressure gas

  4. None of these

Show answer
Correct Option: A
Explanation:

Liquefied petroleum gas or it is also called liquid petroleum gas abbreviated as LPG. 

Also referred to as propane or butane, are flammable mixtures of hydrocarbon gases used as fuel in heating appliances and cooking equipment.

Hence, option A is correct.