Chemistry Quiz on Alkene Nomenclature and pi and sigma bonds

Which type of bond is formed by the head-to-head overlap of atomic orbitals?

• A) Sigma (σ) bond

• B) Pi (π) bond

• C) Delta (Δ) bond

• D) Rho (ρ) bond

What structural feature characterizes alkenes?

• A) Presence of carbon-carbon triple bonds

• B) Presence of carbon-carbon single bonds

• C) Presence of carbon-carbon double bonds

• D) Absence of carbon atoms

What role do sigma and pi bonds play in the stability of organic compounds?

• A) They have no effect on stability.

• B) They destabilize compounds.

• C) They increase stability.

• D) They are irrelevant to stability.

what is the purpose of alkene nomenclature

• To confuse chemists

• To systematically and accurately name alkenes

• To randomly assign names to compounds

• To ignore the structure of alkenes

Which of the following statements about sigma and pi bonds is true?

• Sigma bonds result from side to side overlap of p-orbitals

• Pi bond allows free rotation around the bond axis

• sigma bond restrict rotation due to electron density above and below the bond axis

• pi bonds are formed by head to head overlap of atomic orbitals

How do sigma and pi bonds influence the reactivity of alkenes?

• They have

  no impact on reactivity.

• They decrease reactivity. .

• They increase

  reactivity.

• They alter the color of compounds.

How are substituents named in alkene nomenclature?

• By using symbols

• By using prefixes and suffixes

• By counting the number of carbon atoms

• By flipping a coin

Which of the following is NOT a principle behind naming alkenes?

• Selecting the parent chain

• Identifying substituents

• Assigning random names

• Numbering carbon atoms to indicate double bond position

What structural feature characterizes alkenes?

• Presence of carbon-carbon

  triple bonds

• Presence of carbon-carbon single bonds

• presence of

  carbon-carbon double bonds

• Absence of carbon atoms

Which type of bond is formed by the head-to-head overlap of atomic orbitals?

• Sigma (σ)

• Pi (π)

• Delta (Δ)

• Rho (ρ)