Question 1 (1 point) Valence bond theory is sued to describe the making of: Ques

Question

Question 1 (1 point)

Valence bond theory is sued to describe the making of:

Question 1 options:

organic molecules

covalent bonds

ionic bonds

ions

Question 2 (1 point)

Multiple bonds consist of:

Question 2 options:

only sigma bonds

only Pi bonds

a combination of sigma and Pi bonds

all of the above

Question 3 (1 point)

In a sigma bond, the electron density is higher:

Question 3 options:

outside of of the internuclear axis

perpendicular to the internuclear axis

on the internuclear axis

it depends on the orbitals involved

Question 4 (1 point)

Single bonds may contain:

Question 4 options:

only sigma bonds

only Pi bonds

a combination of sigma and Pi bonds

all of the above

Question 5 (1 point)

In general, atomic orbital overlap is greater when the orbitals overlap:

Question 5 options:

end to end

at an angle

orientation has no effect on overlap

none of the above

Question 6 (1 point)

Valence bond theory is needed because:

Question 6 options:

quantum theory only describes orbitals around free atoms

VSEPR does not explain chemical bonding

atomic orbitals are not sufficient to describe the regions where electrons will be located in a molecule

all of the above

Question 7 (1 point)

Sigma bonds are produced by the overlap of:

Question 7 options:

two s orbitals

two p orbitals

one s orbital and one p orbital

all of the above

only a and b

Question 8 (1 point)

Bond energy is:

Question 8 options:

the difference between the energy minimum (which occurs at the bond distance) and the energy of the two separated atoms

the quantity of energy released when the bond is formed

the amount of energy required to break the bond

all of the above

organic molecules

covalent bonds

ionic bonds

ions

Explanation / Answer

According to chegg rules we have to answer only first four questions.

Question 1

Valence bond theory is used to describe the making of covalent bonds

According to Valence bond theory a covalent bond is formed between the two atoms by the overlap of half filled valence atomic orbitals of each atom containing one unpaired electron.

Question 2 (1 point)

Multiple bonds consist of a combination of sigma and Pi bonds when two bond are present then 1 is sigma and other is pi bond.

Pi bond is always form after sigma bond

Question 3 (1 point)

In a sigma bond, the electron density is higher perpendicular to the internuclear axis because sigma bond is form by the end to end overlap of atomic orbital.

Question 4 (1 point)

Single bonds may contain only sigma bonds

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