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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?

Atoms on the same plane with double or triple bonds Signup and view all the answers

What is the example of a saturated hydrocarbon?

Methane Signup and view all the answers

What is the example of a planar compound?

Ethene Signup and view all the answers

What is the primary difference between aliphatic and aromatic hydrocarbons?

Presence of benzene in their structure Signup and view all the answers

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

Ethene Signup and view all the answers

What is the functional group present in saturated hydrocarbons?

C-C Signup and view all the answers

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

The colour of the solution turns colourless Signup and view all the answers

Which of the following is a characteristic of cyclohexane?

It has a ring structure Signup and view all the answers

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