Organic Molecules and Functional Groups

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Questions and Answers

What is the functional group of an alkane?

  • Hydrogen substituent (correct)
  • Carbonyl group
  • Carbon-carbon double bond
  • Alkyl group

What is a primary carbon?

  • Directly attached to four other carbons
  • Directly attached to one other carbon (correct)
  • Directly attached to three other carbons
  • Directly attached to two other carbons

What is the most oxidized state of carbon?

  • Carbon-carbon double bond
  • Carbonyl group
  • Alkane
  • Carbon-carbon triple bond (correct)

Which notation helps to focus attention on the functional group transformation without being distracted by the unaffected parts of the molecule?

<p>R (D)</p> Signup and view all the answers

What is a characteristic reaction of alkanes?

<p>Reacting with halogens to yield alkyl halides (D)</p> Signup and view all the answers

What is a functional group in an organic molecule?

<p>A group of atoms that specifies the physical and chemical properties of an organic molecule (B)</p> Signup and view all the answers

What are aliphatic hydrocarbons?

<p>Hydrocarbons containing only carbon and hydrogen with single, double, or triple bonds (B)</p> Signup and view all the answers

Which class of hydrocarbons consists of compounds with all single bonds?

<p>Alkanes (D)</p> Signup and view all the answers

What is the most important aromatic hydrocarbon?

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

Which type of hydrocarbons have properties much different from alkanes, alkenes, and alkynes?

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

A functional group is the atom or a group of atoms that determines the physical properties of an organic molecule.

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

Aromatic hydrocarbons were typically obtained by chemical treatment of unpleasant-smelling plant extracts.

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

Alkenes contain a carbon–carbon triple bond.

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

Arenes have properties similar to alkanes, alkenes, and alkynes.

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

The most important aromatic hydrocarbon is methane.

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

Alkanes react with halogens to yield alkyl halides.

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

The carbon-carbon double bond is a functional group in alkenes.

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

Alkyl groups are classified as primary, secondary, or quaternary according to the degree of substitution of the carbon at the potential point of attachment.

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

Alkynes contain carbon in its most reduced state.

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

An arene is appropriately considered to have the ring in its entirety as the functional group.

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

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