$$\mathrm{H - C - C - H}$$ \newline Each C has 3 H atoms attached

Question 1

Which of the following statements best explains why vegetable oil does not dissolve in water?

Accepted Answer

Vegetable oil is an organic compound with nonpolar covalent bonds, while water is polar.

Question 2

Which property is most typical of inorganic compounds?

Accepted Answer

High melting and boiling points

Question 3

Identify the following compound as organic or inorganic: $$\mathrm{C_3H_8}$$

Accepted Answer

Organic

Question 4

Which of the following is the correct expanded structural formula for ethane ($$\mathrm{C_2H_6}$$)?

Accepted Answer

$$\mathrm{H - C - C - H}$$ 
ewline Each C has 3 H atoms attached

Question 5

What is the IUPAC name for the following compound: $$\mathrm{CH_3CH_2CH_2CH_2CH_3}$$?

Accepted Answer

Pentane

Question 6

Which of the following best describes the bonding in methane ($$\mathrm{CH_4$}$$)?

Accepted Answer

Methane has four single covalent bonds arranged tetrahedrally around the carbon atom.

Question 7

Which of the following is the correct condensed structural formula for butane?

Accepted Answer

$$\mathrm{CH_3CH_2CH_2CH_3}$$

Question 8

Which of the following is a correct line-angle formula for pentane?

Accepted Answer

A zigzag line with five vertices (ends and corners)

Question 9

What is the IUPAC name for a cycloalkane with six carbon atoms?

Accepted Answer

Cyclohexane

Question 10

Which of the following is a structural isomer of pentane ($$\mathrm{C_5H_{12}}$$)?

Accepted Answer

$$\mathrm{CH_3CH_2CH(CH_3$)_2}$$

Question 11

Which of the following is the correct IUPAC name for the compound with the condensed formula $$\mathrm{CH_3CH_2CH_2CH_2CH_3}$$?

Accepted Answer

Pentane

Question 12

A compound has the formula $$\mathrm{C_7H_{16}}. $$Which of the following statements is true?

Accepted Answer

It is an alkane with seven carbon atoms and is called heptane.

Question 13

Which of the following is the correct IUPAC name for a compound with a chlorine atom on the second carbon of propane?

Accepted Answer

2-chloropropane

Question 14

Which of the following is a correct description of a haloalkane?

Accepted Answer

An alkane in which a hydrogen atom is replaced by a halogen atom.

Question 15

Which of the following is the correct IUPAC name for the compound with the structure: $$\mathrm{CH_3CH_2CH(CH_3$)CH_2CH_3}$$?

Accepted Answer

3-methylpentane

Question 16

Which of the following is the correct IUPAC name for a compound with a bromo group on carbon 4 and methyl groups on carbons 2 and 4 of hexane?

Accepted Answer

4-bromo-2,4-dimethylhexane

Question 17

Which of the following best describes the difference between structural isomers?

Accepted Answer

They have the same molecular formula but different connectivity of atoms.

Question 18

Which of the following is the correct condensed structural formula for 2,2-dimethylpropane?

Accepted Answer

$$\mathrm{(CH_3$)_4C}$$

Question 19

Which of the following is the correct IUPAC name for a cycloalkane with an ethyl group attached?

Accepted Answer

Ethylcyclohexane

Introduction to Organic Chemistry: Hydrocarbons – Study Notes

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