IB Chem: Topic 14.1 the rest

C. 16 sigma and 6 pi

How many sigma (σ) and pi (π) bonds are present in this molecule?

C. 11 sigma, 2 pi

How many sigma (σ) and pi (π) bonds are there in the following molecule?

C. 15 σ and 3 π

How many sigma and pi bonds are there in CH₃CH₂CCCH₂COOH? A. 13 σ and 5 π B. 15 σ and 2 π C. 15 σ and 3 π D. 15 σ only

C. 6 sigma and 2 pi

How many sigma and pi bonds are there in propyne, ? A. 2 sigma and 2 pi B. 7 sigma and 1 pi C. 6 sigma and 2 pi D. 5 sigma and 3 pi

B. 6 sigma, 2 pi

How many σ and π bonds are present in a molecule of propyne, CH₃CCH?

D. I, II and III *you won't have a question like this on your exam until we cover Organic which discusses alcohol structures*

Retinol (vitamin A) contains a total of 5 double bonds and 46 single bonds. Which statements are correct? I. There are 51 σ and 5 π bonds. II. The oxygen atom is hybridized. III. Retinol is a primary alcohol. A. I and II only B. I and III only C. II and III only D. I, II and III

C. II and III only

The diagrams below show s and p orbitals in different positions. Which combinations can form a sigma (σ) bond? A. I and II only B. I and III only C. II and III only D. I, II and III

C. 6 sigma, 3 pi

What is the correct number of sigma and pi bonds in prop-2-enenitrile, CH₂CHCH?

A. sp² hybridization, 3 sigma, 1 pi

What is the hybridization of the carbon atom, and the number of sigma and pi bonds in the methanal molecule?

D.

What is the hybridization of the numbered atoms in ethanoic acid?

A. 9 sigma, 9 pi

What is the number of sigma (σ) and pi (π) bonds in the molecule (NC)₂C=C(CN)₂?

A. tetrahedral, sp³

Which combination describes the PH₄⁺ ion?

B. 3 electron domains, 8 pi electrons, 15 sigma bonds

Which combination describes the bonding and structure in benzoic acid, C₆H₅COOH?

A. They are formed by the sideways overlap of parallel orbitals.

Which of the following best describes the formation of pi bonds? A. They are formed by the sideways overlap of parallel orbitals. B. They are formed by the axial overlap of orbitals. C. They are formed by the sideways overlap of an s and p orbital. D. They are formed by the axial overlap of either s or p orbitals.

B. I and III only

Which overlap of atomic orbitals leads to the formation of only a sigma (σ) bond? I. s − p II. p − p III. s − s A. I and II only B. I and III only C. II and III only D. I, II and III

C. Pi bonds are formed parallel to the axis between atoms.

Which statement is correct? A. Sigma bonds are formed only by the combination of s atomic orbitals. B. Pi bonds can be formed in the absence of sigma bonds. C. Pi bonds are formed parallel to the axis between atoms. D. Pi bonds are formed only by the combination of hybrid orbitals.

A. O₃

Which structure has delocalized pi electrons? A. O₃ B. CO C. HCN D. CO₂