Question 1

Which of the following statements correctly describes a property that distinguishes organic compounds from inorganic compounds?

Accepted Answer

Organic compounds are flammable and undergo combustion.

Question 2

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

Accepted Answer

$$CH_3CH_2CH_2CH_3$$

Question 3

A hydrocarbon with the molecular formula $$C_5H_{12} is $$classified as which type of hydrocarbon?

Accepted Answer

Alkane

Question 4

Which of the following best explains why alkanes are insoluble in water?

Accepted Answer

Alkanes are nonpolar and water is polar.

Question 5

What is the IUPAC name for the following structure: $$CH_3CH_2CH_2CH_2CH_3$$?

Accepted Answer

Pentane

Question 6

Which of the following is a correct representation of a cycloalkane with four carbon atoms?

Accepted Answer

Cyclobutane

Question 7

Which of the following is a structural isomer of butane ($$C_4H_{10}$$)?

Accepted Answer

2-methylpropane

Question 8

A compound with the formula $$C_2H_4 is $$classified as which type of hydrocarbon?

Accepted Answer

Alkene

Question 9

Which of the following statements about the combustion of alkanes is correct?

Accepted Answer

Combustion of alkanes produces carbon dioxide, water, and energy.

Question 10

What is the product of the complete combustion of methane ($$CH_4) in $$oxygen?

Accepted Answer

$$CO_2$$ and $$H_2O$$

Question 11

Which of the following is the correct IUPAC name for a six-carbon alkene with a double bond starting at carbon 2?

Accepted Answer

2-hexene

Question 12

Which of the following best describes a cis isomer of 2-butene?

Accepted Answer

The two methyl groups are on the same side of the double bond.

Question 13

Which catalyst is commonly used in the hydrogenation of alkenes?

Accepted Answer

Pt (platinum)

Question 14

During the hydration of an alkene, which atom from water attaches to the carbon with more hydrogen atoms?

Accepted Answer

Hydrogen atom

Question 15

Which of the following is the correct molecular formula for benzene?

Accepted Answer

$$C_6H_6$$

Question 16

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

Accepted Answer

Ethylcyclohexane

Question 17

Which of the following statements about aromatic compounds is correct?

Accepted Answer

Aromatic compounds have a ring structure with alternating double bonds.

Question 18

Which of the following is a correct product of the hydrogenation of ethene ($$C_2H_4$$)?

Accepted Answer

$$C_2H_6$$

Question 19

Which of the following substituents is named with the ending '-yl' in the IUPAC system?

Accepted Answer

Methyl

Question 20

A student is asked to draw the line-angle formula for cyclopentane. Which of the following would be correct?

Accepted Answer

A pentagon

Introduction to Organic Chemistry: Hydrocarbons (Chapter 11 Study Notes)

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