Question 1

Which of the following statements correctly describes a saturated hydrocarbon?

Accepted Answer

It contains the maximum number of hydrogen atoms and only single bonds.

Question 2

What is the molecular formula for hexane?

Accepted Answer

$$\mathrm{C_6H_{14}}$$

Question 3

Which property is NOT typical of organic compounds?

Accepted Answer

High water solubility

Question 4

A hydrocarbon with the formula $$\mathrm{C_4H_{10}}$$ can exist as two different compounds. What is the relationship between these two compounds?

Accepted Answer

They are structural isomers.

Question 5

Which of the following best describes the shape of a carbon atom in ethene ($$\mathrm{C_2H_4}$$)?

Accepted Answer

Trigonal planar

Question 6

Which reaction type is used to convert an alkene to an alkane?

Accepted Answer

Hydrogenation

Question 7

According to Markovnikov's rule, when HBr is added to propene, where does the hydrogen atom attach?

Accepted Answer

To the carbon with more hydrogen atoms

Question 8

Which of the following is a property of alkanes that makes them useful as fuels?

Accepted Answer

They combust to produce $$\mathrm{CO_2$}$$ and $$\mathrm{H_2O}.$$

Question 9

What is the condensed structural formula for butane?

Accepted Answer

$$\mathrm{CH_3CH_2CH_2CH_3}$$

Question 10

Which of the following statements about carbon atoms in organic compounds is TRUE?

Accepted Answer

Carbon atoms in alkanes are always tetrahedral.

Question 11

A branched alkane differs from a linear alkane in that:

Accepted Answer

Not all carbon atoms are in a single row.

Question 12

Which of the following is a monomer used to make polyethylene?

Accepted Answer

Ethene ($$\mathrm{C_2H_4})$$

Question 13

Which of the following is NOT a type of addition reaction for alkenes?

Accepted Answer

Combustion

Question 14

What is the general formula for alkanes?

Accepted Answer

$$\mathrm{C_nH_{2n+2}}$$

Question 15

Which polymer is commonly used for nonstick cookware surfaces?

Accepted Answer

Polytetrafluoroethylene (Teflon)

Question 16

Which of the following statements about double bonds in alkenes is correct?

Accepted Answer

Double bonds restrict rotation, leading to possible cis/trans isomerism.

Question 17

A hydrocarbon with a triple bond is classified as:

Accepted Answer

An alkyne

Question 18

Which of the following is a correct balanced equation for the combustion of propane ($$\mathrm{C_3H_8}$$)?

Accepted Answer

$$\mathrm{C_3H_8 + 5O_2 \rightarrow 3CO_2 + 4H_2O}$$

Question 19

Which of the following is a correct description of a structural isomer?

Accepted Answer

Compounds with the same molecular formula but different atom arrangement.

Question 20

Which property of alkanes makes them the least reactive family of organic compounds?

Accepted Answer

Presence of only single bonds

Hydrocarbons: Structure, Properties, and Reactions (Chapter 11 Study Notes)

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