Question 1

Which of the following compounds is considered an organic compound?

Accepted Answer

$$\mathrm{C_5H_{12}}$$

Question 2

Which of the following chemical formulas represents an organic compound?

Accepted Answer

$$\mathrm{CH_3N}$$

Question 3

What is the molecular geometry around the oxygen atom in methanol ($$\mathrm{CH_3OH}$$)?

Accepted Answer

Tetrahedral

Question 4

Which bond angle is expected around each carbon atom in benzene ($$\mathrm{C_6H_6}$$)?

Accepted Answer

$$120^\circ$$

Question 5

Which of the following is the correct condensed structure for hexane?

Accepted Answer

$$\mathrm{CH_3CH_2CH_2CH_2CH_2CH_3}$$

Question 6

Which functional group is present in propyl acetate, a compound responsible for the aroma of pears?

Accepted Answer

Ester

Question 7

Which of the following best describes the geometry around the nitrogen atom in methylamine ($$\mathrm{CH_3NH_2}$$)?

Accepted Answer

Trigonal pyramidal

Question 8

Which of the following is the correct skeletal structure for butane?

Accepted Answer

A zig-zag line with three vertices (four carbons)

Question 9

Which functional group is present in tartaric acid, a compound found in grapes?

Accepted Answer

Carboxylic acid

Question 10

What is the hybridization of the central carbon atom in acetone ($$\mathrm{CH_3COCH_3}$$)?

Accepted Answer

$$sp^2$$

Question 11

Which of the following molecules contains both an alcohol and an ether functional group?

Accepted Answer

Isobutyl formate

Question 12

Which of the following is the correct complete structure for $$(\mathrm{CH_3$})_2CH(CH_2$)_6CH_3$$?

Accepted Answer

A nine-carbon chain with a methyl group on carbon 2

Question 13

Which of the following best explains why all C–C–C bond angles in benzene are $$120^\circ$$?

Accepted Answer

Each carbon is $$sp^2$$ hybridized and the ring is planar

Question 14

Which functional group is present in vanillin, the primary component of vanilla bean extract?

Accepted Answer

Aldehyde

Question 15

Which of the following is the correct condensed structure for 1-butanol?

Accepted Answer

$$\mathrm{CH_3CH_2CH_2CH_2OH}$$

Question 16

Which of the following molecules contains a ketone functional group?

Accepted Answer

2-heptanone

Question 17

Which of the following is the correct skeletal structure for 2-methylpropane (isobutane)?

Accepted Answer

A three-carbon chain with a methyl group on the middle carbon

Question 18

Which of the following best describes the geometry around the oxygen atom in water ($$\mathrm{H_2O}$$)?

Accepted Answer

Bent (angular)

Question 19

Which of the following is a correct statement about the structure of hexachloroethane ($$\mathrm{CCl_3CCl_3}$$)?

Accepted Answer

Each carbon is bonded to three chlorine atoms and one other carbon

Question 20

Which of the following molecules contains both a double bond and a hydroxyl group?

Accepted Answer

Carotatoxin

Organic Chemistry: Structure, Bonding, and Functional Groups – Step-by-Step Study Guidance

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