Overview of Alkanes and Their Properties

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Questions and Answers

What is the main constituent of natural gas?

  • Methane (correct)
  • Ethane
  • Butane
  • Propane

What is the flammable hydrocarbon gas used as bottled fuel?

Propane

Which alkane is volatile and present in petroleum-based solvents?

  • Nonane
  • Decane
  • Pentane (correct)
  • Hexane

Hexane is an odorless liquid hydrocarbon of the alkane series.

<p>True (A)</p> Signup and view all the answers

Which alkane is obtained from petroleum and is colorless?

<p>Heptane</p> Signup and view all the answers

What is Octane primarily obtained from?

<p>Petroleum refining (B)</p> Signup and view all the answers

Name an alkane that is present in petroleum products like kerosene.

<p>Decane</p> Signup and view all the answers

Which of the following is a constituent of petroleum?

<p>All of the above (D)</p> Signup and view all the answers

What type of gas is Ethane?

<p>Flammable gas</p> Signup and view all the answers

What is Nonane?

<p>A colorless liquid hydrocarbon</p> Signup and view all the answers

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Study Notes

Alkanes Overview

  • Alkanes are hydrocarbons with single bonds and a general formula of CnH2n+2.
  • They are saturated compounds, meaning they contain the maximum number of hydrogen atoms.

Methane

  • Simplest alkane with the formula CH4.
  • Colorless, odorless, and highly flammable.
  • Primary component of natural gas.

Ethane

  • Second simplest alkane with the formula C2H6.
  • Colorless, odorless gas found in petroleum and natural gas.

Propane

  • A three-carbon alkane with the formula C3H8.
  • Flammable gas often used as bottled fuel, widely used for heating and cooking.

Butane

  • Four-carbon alkane represented as C4H10.
  • Flammable gas found in petroleum; commonly stored as a liquid in pressurized containers for easier transport and use.

Pentane

  • Five-carbon alkane denoted by C5H12.
  • A volatile liquid hydrocarbon used in various petroleum-based solvents.

Hexane

  • Six-carbon alkane with the formula C6H14.
  • A clear, colorless liquid often used as a non-polar solvent in laboratories and industry.

Heptane

  • Seven-carbon alkane best known as C7H16.
  • Colorless liquid derived from petroleum, commonly used in fuel applications.

Octane

  • Eight-carbon alkane indicated by C8H18.
  • Colorless and flammable, primarily obtained during the refining of petroleum, significant for its role in gasoline formulations.

Nonane

  • Nine-carbon alkane with the formula C9H20.
  • Colorless liquid hydrocarbon present in petroleum spirit, useful in industrial applications.

Decane

  • Ten-carbon alkane represented as C10H22.
  • Colorless liquid mainly found in kerosene and other petroleum products, frequently utilized as a solvent and fuel.

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