Chapter 22 And Chapter 23 Organic Chemistry

2.

How many covalent bonds can each carbon atom form?

2
3
4
5

Correct Answer

A. 4

Explanation

Each carbon atom can form four covalent bonds. This is because carbon has four valence electrons, and it needs to share these electrons with other atoms in order to achieve a stable electron configuration. By forming four covalent bonds, carbon can complete its octet and achieve a stable configuration similar to that of noble gases.

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3.

Which one of those hydrocarbons is 1-propanol

Option 1
Option 2
Option 3

Correct Answer

A. Option 1

4.

What is the simplest straight-chain alkane?

Graphite
Ammonia
Methane
Alkane

Correct Answer

A. Methane

Explanation

Methane is the simplest straight-chain alkane because it consists of only one carbon atom bonded to four hydrogen atoms. It is the simplest hydrocarbon and serves as the building block for more complex organic compounds. Methane is a gas at room temperature and is commonly found in natural gas and as a byproduct of certain biological processes.

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5.

Alkanes contain only single covalent bonds.

True
False

Correct Answer

A. True

Explanation

Alkanes are a type of hydrocarbon that consists of carbon-carbon single bonds and carbon-hydrogen single bonds. This means that all the bonds in alkanes are single covalent bonds. Therefore, the statement that alkanes contain only single covalent bonds is true.

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6.

The angle between the carbon atoms in a carbon– carbon triple bond is 120°.

True
False

Correct Answer

A. False

Explanation

The angle between the carbon atoms in a carbon-carbon triple bond is not 120°. In a triple bond, there is one sigma bond and two pi bonds. The sigma bond is formed by the overlap of two sp hybrid orbitals, which are linear and have a 180° bond angle. The two pi bonds are formed by the sideways overlap of two sets of p orbitals, resulting in a bond angle of 90°. Therefore, the correct answer is false.

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7.

Name the following structure

1-pentane
1-pentene
2-pentene
2-pentanol

Correct Answer

A. 1-pentene

Explanation

The given answer, 1-pentene, is the correct name for the structure. It follows the IUPAC naming system for organic compounds, where the prefix "1-" indicates that the double bond is located at the first carbon atom in the pentene chain. This naming convention is used to specify the exact position of functional groups or double bonds in organic molecules.

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8.

Which of the following is a characteristic of an amine?

Carbon atoms arranged in a ring
Oxygen atom bonded to two carbon atoms
Sulfur atom bonded to a carbon atom
Nitrogen atom bonded to a carbon atom

Correct Answer

A. Nitrogen atom bonded to a carbon atom

Explanation

Amines are organic compounds that contain a nitrogen atom bonded to a carbon atom. This is the defining characteristic of an amine. Amines can be primary, secondary, or tertiary, depending on the number of carbon groups bonded to the nitrogen atom. They are commonly found in biological molecules such as proteins and neurotransmitters.

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9.

Organic compounds that contain the maximum number of hydrogen atoms per carbon atom are called _____________compounds.

Saturated
Unsaturated
Aromatic
Option 4

Correct Answer

A. Saturated

Explanation

Saturated compounds are organic compounds that contain the maximum number of hydrogen atoms per carbon atom. In these compounds, all carbon atoms are bonded to the maximum number of hydrogen atoms possible, resulting in a single bond between each carbon atom. This type of bonding allows for the maximum saturation of hydrogen atoms in the molecule, hence the name "saturated." Unsaturated compounds, on the other hand, have double or triple bonds between carbon atoms, resulting in fewer hydrogen atoms per carbon atom. Aromatic compounds are a specific type of unsaturated compound that contain a benzene ring structure.

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10.

What is the compound type for the carbon skeleton shown? C—C—C—O—C—C

Aldahyde
Ester
Ether
Carboxylic acid

Correct Answer

A. Ether

Explanation

The compound type for the carbon skeleton shown is ether. This is because it consists of a chain of carbon atoms connected by single bonds, with an oxygen atom in the middle. Ethers are organic compounds that have the general formula R-O-R', where R and R' can be any alkyl or aryl group. In this case, the carbon skeleton shown has two alkyl groups attached to the oxygen atom, making it an ether.

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11.

Name the following compound

2-butene
3-butyne
1-butyne
2-propyne

Correct Answer

A. 1-butyne

Explanation

The compound is named 1-butyne because it consists of a butane backbone with a triple bond at the first carbon atom. The prefix "1-" indicates the position of the triple bond, which is at the first carbon. Butyne refers to the presence of four carbon atoms in the molecule, with the suffix "-yne" indicating the presence of a triple bond.

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12.

Hydrocarbons that contain one or more______________ covalent bonds between carbons are called alkenes

Correct Answer
double

Explanation
Hydrocarbons that contain one or more double covalent bonds between carbons are called alkenes. This means that in an alkene molecule, there is at least one carbon-carbon bond that consists of two shared electrons, forming a double bond. The presence of this double bond distinguishes alkenes from other hydrocarbons, such as alkanes, which only have single covalent bonds between carbons. Alkenes have unique chemical properties due to the presence of the double bond, making them important in various industrial processes and organic reactions.

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13.

Hydrogen atoms are the only atoms that can bond to the carbon atoms in a hydrocarbon.

True
False

Correct Answer

A. False

Explanation

This statement is false because carbon atoms can bond with other atoms besides hydrogen in a hydrocarbon. In fact, hydrocarbons can contain other elements such as oxygen, nitrogen, and halogens. The presence of these other elements in a hydrocarbon molecule allows for a variety of different chemical reactions and compounds to be formed.

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1

14.

Chapter 22 And Chapter 23 Organic Chemistry

The general name for hydrocarbons with at least one triple covalent bond is ____.

Quiz Preview

How many covalent bonds can each carbon atom form?

Which one of those hydrocarbons is 1-propanol

What is the simplest straight-chain alkane?

Alkanes contain only single covalent bonds.

The angle between the carbon atoms in a carbon– carbon triple bond is 120°.

Name the following structure

Which of the following is a characteristic of an amine?

Organic compounds that contain the maximum number of hydrogen atoms per carbon atom are called _____________compounds.

What is the compound type for the carbon skeleton shown? C—C—C—O—C—C

Name the following compound

Hydrocarbons that contain one or more______________ covalent bonds between carbons are called alkenes

Hydrogen atoms are the only atoms that can bond to the carbon atoms in a hydrocarbon.

Please select the cyclopropane from the given structures