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Standard IX

Chemistry

Lewis Dot Structure

Indicate the ...

Question

Indicate the wrong statement according to $V B T .$

A sigma bond has no free rotation about the inter-nuclear axis.

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p-orbitals always have only sidewise overlapping.

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s-orbitals never form

π

- bonds.

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There can be more than one sigma bond between two atoms.

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Solution

The correct option is A A sigma bond has no free rotation about the inter-nuclear axis.
A sigma bond is formed by the overlap of s-s, s-p, px-px, s-d orbitals. Therefore, rotation around a sigma bond is possible without any restriction according to VBT theory.
Option A is correct.

Suggest Corrections

Similar questions

Q. Assuming

z -

axis inter nuclear axis. What molecular orbitals are formed by overlap of two

P_{z}

atomic orbitals to form

σ

bond?

Q. Assertion :The carbon-carbon double bond energy in

C_{2} H_{4}

is more than the carbon-carbon single bond energy in

C_{2} H_{6}

. Reason: A

σ

-orbital has greater electron overlap between the atoms because its component

σ

-orbitals are directed toward each other, whereas the component

π

-orbitals making-up the

π

-orbital are directed perpendicular to the inter-nuclear axis.

Q. According to VBT any covalent bond will be formed by overlapping of valence atomic orbitals of bonded atoms provided atomic orbitals must be half–filled and electrons be in opposite spin. According to type of overlapping covalent bonds can be classified as: (a)

σ

bond (b)

π

bond (c)

δ

bond. If

F_{2} C_{1} = C_{2}

part of

F_{2} C_{1} = C_{2} = C_{3} = C_{4} F_{2}

lies in

y z

–plane then incorrect statement is:

Q. According to VBT any covalent bond will be formed by overlapping of valence atomic orbitals of bonded atoms provided atomic orbitals must be half–filled and electrons be in opposite spin.
According to type of overlapping covalent bonds can be classified as: (a)

σ

bond (b)

π

bond (c)

δ

bond.
The combination of orbital that cannot produce non–bonding molecular orbital is:
(internuclear axis is z–axis)

Q. Assuming

z -

axis inter nuclear axis. which orbitals overlap to form

σ

bond

s + P_{Y}

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Indicate the wrong statement according to VBT.

The correct option is A A sigma bond has no free rotation about the inter-nuclear axis.A sigma bond is formed by the overlap of s-s, s-p, px-px, s-d orbitals. Therefore, rotation around a sigma bond is possible without any restriction according to VBT theory.Option A is correct.

Indicate the wrong statement according to $V B T .$

The correct option is A A sigma bond has no free rotation about the inter-nuclear axis.
A sigma bond is formed by the overlap of s-s, s-p, px-px, s-d orbitals. Therefore, rotation around a sigma bond is possible without any restriction according to VBT theory.
Option A is correct.