21 Fuels & Compounds MCQ2
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Questions and Answers

What is the characteristic of aliphatic hydrocarbons in terms of their carbon structure?

  • Rings of carbon with double or triple bonds
  • Benzene in their structure
  • Chains of carbon or certain rings of carbon (correct)
  • Atoms on the same plane with single bonds

What is the general characteristic of saturated hydrocarbons?

  • They have a mix of single, double, and triple carbon to carbon bonds
  • They have only single carbon to carbon covalent bonds (correct)
  • They have only single carbon to carbon double bonds
  • They have only single carbon to carbon triple bonds

What is the test for unsaturation in hydrocarbons?

  • Turn acidified MnO₄- from pink to colourless and decolourise red/brown bromine water (correct)
  • Turn acidified MnO₄- from blue to colourless and decolourise red/brown bromine water
  • Turn acidified MnO₄- from colourless to pink and decolourise red/brown bromine water
  • Turn acidified MnO₄- from pink to colourless and decolourise blue bromine water

What is the characteristic of planar compounds in terms of their structure?

<p>Atoms on the same plane with double or triple bonds (B)</p> Signup and view all the answers

What is the example of a saturated hydrocarbon?

<p>Methane (C)</p> Signup and view all the answers

What is the example of a planar compound?

<p>Ethene (C)</p> Signup and view all the answers

What is the primary difference between aliphatic and aromatic hydrocarbons?

<p>Presence of benzene in their structure (B)</p> Signup and view all the answers

Which of the following compounds is an example of an unsaturated hydrocarbon?

<p>Ethene (C)</p> Signup and view all the answers

What is the functional group present in saturated hydrocarbons?

<p>C-C (C)</p> Signup and view all the answers

What is the result of testing an unsaturated hydrocarbon with acidified MnO₄-?

<p>The colour of the solution turns colourless (D)</p> Signup and view all the answers

Which of the following is a characteristic of cyclohexane?

<p>It has a ring structure (A)</p> Signup and view all the answers

Which of the following compounds is an example of a saturated hydrocarbon with a tetrahedral structure?

<p>Methane (C)</p> Signup and view all the answers

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