Question 1

Which of the following best describes the functional group present in the molecule shown in the first image (Lewis structure, partially condensed, condensed, and molecular formula representations)?

Accepted Answer

Alcohol

Question 2

What is the bond angle expected for an sp3 hybridized carbon atom, as represented in bond-line structures?

Accepted Answer

$$109.5^{\circ}$$

Question 3

In the bond-line structure shown in the fourth image, how many carbon atoms are present?

Accepted Answer

5

Question 4

Which of the following statements about resonance is correct?

Accepted Answer

Resonance increases the stability of a molecule by delocalizing electrons.

Question 5

Which functional group is present in the molecule shown in the second image (Amoxicillin)?

Accepted Answer

Amide

Question 6

What is the correct formal charge on the carbon atom in the structure shown in the thirteenth image (carbon with three bonds and a lone pair)?

Accepted Answer

-1

Question 7

Which of the following is a correct representation of a nitrile functional group?

Accepted Answer

$$\mathrm{R{-}C{\equiv}N}$$

Question 8

In the context of resonance, which pattern allows for electron delocalization?

Accepted Answer

A lone pair adjacent to a positive charge

Question 9

Which of the following statements about bond-line structures is FALSE?

Accepted Answer

It is acceptable to draw a carbon with five bonds.

Question 10

Which of the following molecules would be most time-consuming to draw for a large molecule (20+ atoms)?

Accepted Answer

Lewis structure

Question 11

Which of the following is the correct general formula for an alkane?

Accepted Answer

$$\mathrm{R{-}H}$$

Question 12

Which of the following is a correct statement about the stability of resonance contributors?

Accepted Answer

A contributor with a complete octet is generally more stable.

Question 13

Which of the following is the correct condensed formula for the molecule shown in the first image?

Accepted Answer

$$\mathrm{(CH_3$)_2CHOH}$$

Question 14

Which of the following is NOT a rule for drawing curved arrows in resonance?

Accepted Answer

Always break sigma bonds to show resonance.

Question 15

Which hybridization is favored for the nitrogen atom in an amide due to resonance stabilization?

Accepted Answer

sp2

Question 16

Which of the following best explains why resonance makes a molecule more stable?

Accepted Answer

Resonance allows electrons to spend time close to multiple nuclei, maximizing attractions.

Question 17

Which of the following is the correct bond-line structure for butane?

Accepted Answer

A zigzag line with four vertices/endpoints

Question 18

Which of the following is a correct statement about formal charge in bond-line structures?

Accepted Answer

Formal charge must always be shown if present.

Question 19

Which of the following is a correct example of a molecule with delocalized electrons?

Accepted Answer

A molecule with a lone pair on an sp2 hybridized atom adjacent to a double bond

Families of Carbon Compounds, Functional Groups, and Resonance in Organic Chemistry

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