Question 1

Consider the following structural formula.   The following is a resonance structure.

Accepted Answer

A) True 
 B)False

Question 2

The percent s character in an sp2 hybridized orbital is approximately 33%.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following is trigonal planar?

Accepted Answer

A) boron trifluoride, BF3 
B) methyl anion, CH3- 
C) methane, CH4 
D) ammonia, NH3 
A) boron trifluoride, BF3 
B) methyl anion, CH3- 
C) methane, CH4 
D) ammonia, NH3

Question 4

How many electrons are there in the valence shell of the oxygen atom of water?

Accepted Answer

A) 2 
B) 4 
C) 6 
D) 8 
A) 2 
B) 4 
C) 6 
D) 8

Question 5

Circle and name the functional groups in the following molecule.

Accepted Answer

The answer of Circle and name the functional groups in...

Question 6

Which of the following molecules has a molecular dipole moment?

Accepted Answer

A) CO2 
B) BF3 
C) NH3 
D) CH4 
A) CO2 
B) BF3 
C) NH3 
D) CH4

Question 7

Different compounds with the same molecular formula are called __________.

Accepted Answer

The answer of Different compounds with the same molecular formula...

Question 8

The formal charges in the complex should below are 0 on each H, -1 on N, and +1 on B.

Accepted Answer

A) True 
 B)False

Question 9

There are eight valence in a methyl anion, CH3-.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following compounds is a carboxylic ester?

Accepted Answer

A) CH3CH2COOH 
B) CH3CH2OCH3 
C) CH3CH2COOCH3 
D) CH3CH2COCH3 
A) CH3CH2COOH 
B) CH3CH2OCH3 
C) CH3CH2COOCH3 
D) CH3CH2COCH3

Question 11

What is the approximate value of the length of the C$\equiv$C bond in ethyne, HC$\equiv$CH?

Accepted Answer

A) 121 pm 
B) 134 pm 
C) 142 pm 
D) 154 pm 
A) 121 pm 
B) 134 pm 
C) 142 pm 
D) 154 pm

Question 12

Which atomic orbitals overlap to form the carbon-hydrogen $\sigma$bonding molecular orbitals of ethene, H2C=CH2?

Accepted Answer

A) C2p + H1s 
B) C2sp + H1s 
C) C2sp2 + H1s 
D) C2sp3 + H1s 
A) C2p + H1s 
B) C2sp + H1s 
C) C2sp2 + H1s 
D) C2sp3 + H1s

Question 13

What is the approximate C-C-C bond angle in propene, CH3CH=CH2?

Accepted Answer

A) 90$\circ$ 
B) 109$\circ$ 
C) 120$\circ$ 
D) 180$\circ$ 
A) 90$\circ$ 
B) 109$\circ$ 
C) 120$\circ$ 
D) 180$\circ$

Question 14

Draw bond-line structures of all of the ketones that have the formula C5H10O.

Accepted Answer

Question 15

The approximate H-C-H bond angle in methane is ______°.

Accepted Answer

The answer of The approximate H-C-H bond angle in methane...

Question 16

Which atomic orbitals overlap to form the carbon-carbon $\sigma$and $\pi$bonding molecular orbitals of ethene, H2C=CH2?

Accepted Answer

A) C2sp3 + C2sp3, and C2p + C2p 
B) C2sp2 + C2sp2, and C2sp2 + C2sp2 
C) C2sp2 + C2sp2, and C2p + C2p 
D) C2sp3 + C2sp3, and C2sp2 + C2sp2 
A) C2sp3 + C2sp3, and C2p + C2p 
B) C2sp2 + C2sp2, and C2sp2 + C2sp2 
C) C2sp2 + C2sp2, and C2p + C2p 
D) C2sp3 + C2sp3, and C2sp2 + C2sp2

Question 17

What is the approximate H-C-O bond angle in formaldehyde, H2C=O?

Accepted Answer

A) 90$\circ$ 
B) 109$\circ$ 
C) 120$\circ$ 
D) 180$\circ$ 
A) 90$\circ$ 
B) 109$\circ$ 
C) 120$\circ$ 
D) 180$\circ$

Question 18

Which of the following is a tertiary alcohol?

Accepted Answer

A) CH3CH2OCH3 
B) (CH3)3COH 
C) (CH3)2CHOH
What is the correct assignment of the na 
A) CH3CH2OCH3 
B) (CH3)3COH 
C) (CH3)2CHOH
What is the correct assignment of the na

Question 19

Which of the following is an ionic bond?

Accepted Answer

A) F-F 
B) C-H 
C) Li-O 
D) C-N 
A) F-F 
B) C-H 
C) Li-O 
D) C-N

Question 20

Circle all of the sp2 hybridized atoms in the following molecular structure.

Accepted Answer

Exam 1: Covalent Bonding and Shapes of Molecules

Consider the following structural formula. The following is a resonance structure.

The percent s character in an sp2 hybridized orbital is approximately 33%.

Which of the following is trigonal planar?

How many electrons are there in the valence shell of the oxygen atom of water?

Circle and name the functional groups in the following molecule.

Which of the following molecules has a molecular dipole moment?

Different compounds with the same molecular formula are called __________.

The formal charges in the complex should below are 0 on each H, -1 on N, and +1 on B.

There are eight valence in a methyl anion, CH3-.

Which of the following compounds is a carboxylic ester?

What is the approximate value of the length of the C ≡\equiv≡ C bond in ethyne, HC ≡\equiv≡ CH?

Which atomic orbitals overlap to form the carbon-hydrogen σ\sigmaσ bonding molecular orbitals of ethene, H2C=CH2?

What is the approximate C-C-C bond angle in propene, CH3CH=CH2?

Draw bond-line structures of all of the ketones that have the formula C5H10O.

The approximate H-C-H bond angle in methane is ______°.

Which atomic orbitals overlap to form the carbon-carbon σ\sigmaσ and π\piπ bonding molecular orbitals of ethene, H2C=CH2?

What is the approximate H-C-O bond angle in formaldehyde, H2C=O?

Which of the following is a tertiary alcohol?

Which of the following is an ionic bond?

Circle all of the sp2 hybridized atoms in the following molecular structure.

Alkanes and Cycloalkanes

Stereoisomerism and Chirality

Acids and Bases

Alkenes: Bonding, Nomenclature, and Properties

Reactions of Alkenes

Alkynes

Haloalkanes, Halogenation, and Radical Reactions

Nucleophilic Substitution and Beta-Elimination

Alcohols

Ethers, Epoxides, and Sulfides

Infrared Spectroscopy

Nuclear Magnetic Resonance Spectroscopy

Mass Spectrometry

An Introduction to Organometallic Compounds

Aldehydes and Ketones

Carboxylic Acids

Functional Derivatives of Carboxylic Acids

Enolate Anions and Enamines

Dienes, Conjugated Systems, and Pericyclic Reactions

Benzene and the Concept of Aromaticity

Reactions of Benzene and Its Derivatives

Amines

Catalytic Carbon-Carbon Bond Formation

Carbohydrates

Lipids

Amino Acids and Proteins

Nucleic Acids

Organic Polymer Chemistry

Filters

The percent s character in an sp² hybridized orbital is approximately 33%.

There are eight valence in a methyl anion, CH₃^-.

What is the approximate value of the length of the C $\equiv$ C bond in ethyne, HC $\equiv$ CH?

Which atomic orbitals overlap to form the carbon-hydrogen $\sigma$ bonding molecular orbitals of ethene, H₂C=CH₂?

What is the approximate C-C-C bond angle in propene, CH₃CH=CH₂?

Draw bond-line structures of all of the ketones that have the formula C₅H₁₀O.

Which atomic orbitals overlap to form the carbon-carbon $\sigma$ and $\pi$ bonding molecular orbitals of ethene, H₂C=CH₂?

What is the approximate H-C-O bond angle in formaldehyde, H₂C=O?

Circle all of the sp² hybridized atoms in the following molecular structure.