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Linear Combination of Atomic Orbitals

incorrect sta...

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incorrect statement about MOs is a)bonding MOs possesses less energy than the atomic orbitals from where they are formed b)bonding MOs have low electron density between 2 nuclei c)electrons in bonding MO\:contributes to the attraction between atoms d)they are formed when lobes of combining atomic orbitals have same sign

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Q. Assertion :In the bonding molecular orbital (MO) of

H

electron density is increased between the nuclei. Reason: The bonding MO is

ψ_{A}

ψ_{B}

which shows destructive interference of the combining electron waves.

Q. Assertion : In the bonding molecular orbital (MO) of

H_{2}

, the electron density is increased between the nuclei.
Reason : The bonding MO is

ψ_{A} + ψ_{B}

, which shows destructive interference of the combining electron waves.

Q. According to MOT (Molecular Orbital Theory), the molecular orbitals are formed by mixing of atomic orbitals through LCAO (linear combination of atomic orbitals). The correct statement (s) about molecular orbitals is/are Statement (a) : bonding molecular orbitals are formed by addition of wave-functions of atomic orbitals of same phase Statement (b) : anti-bonding molecular orbitals do not take part in bond formation because they belong to inner shells Statement (d) : anti-bonding molecular orbitals provide stability to molecules while bonding molecular orbitals make the molecules unstable.

Q. Statement 1: A

π

bond is formed between the lobes of adjacent

p

orbitals in the same lane of two atoms that contain only one electron each.
Statement 2: Each of the two lobes of a single

p

orbital can hold two electrons of opposite spin.

Q. According to MOT, two atomic orbitals overlap resulting in the formation of molecular orbitals. Number of atomic orbitals overlapping together is equal to the molecular orbital formed. The two atomic orbital thus formed by LCAO (linear combination of atomic orbital) in the same phase or in the different phase are known as bonding and antibonding molecular orbitals respectively. The energy of bonding molecular orbital is lower than that of the pure atomic orbital by an amount

Δ

. This known as the stabilization energy. The energy of antibonding molecular orbital is increased by

Δ^{'}

(destabilization energy).
Which of the following statement(s) is(are) true:

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