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s and p Overlap

The overlappi...

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The overlapping powers of 2s, 2p, 2sp2, 2sp3 and2sp orbitals are in the order

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2 s - 2 s, 2 p - 2 p

2 p - 2 s

orbitals overlap, the bond strength decreases in the order:

Which of the following statements about overlap integrals of the various orbital is true -

1)2p>2s>2sp^3>2sp^2>2sp

2)2p>2sp^3>2sp^2>2sp>2s

3)2p>2sp>2sp^2>2sp^3>2s

4)2sp^3>2sp^2>2sp>2p>2s

Q. The formation of a double bond in an oxygen molecule is explained below. Arrange the given points in a sequential order.
(a) 2p

_{y}

orbitals of each oxygen atom overlap laterally/sidewise to form a pi bond.
(b) Thus, a double bond between two oxygen atoms in which one p

_{z}

_{z}

sigma bond and p

_{y}

_{y}

π

bond is formed.
(c) All the three 2p orbitals are perpendicular to each other. Hence 2p

_{z}

orbitals of each oxygen atom overlap end to end to form a sigma bond.
(d) The electronic configuration of oxygen is

O

^{2}

^{2}

_{x}^{1}

_{y}^{2}

_{z}^{1}

Q. A series of orbitals are given below. Identify the sets which represent the correct order of filling up of orbitals.
(A)

3 s, 3 p, 3 d, 4 s, 4 p

4 s, 4 p, 5 s, 4 d, 5 p, 4 f

2 s, 2 p, 3 s, 3 p, 4 s, 3 d, 4 p

1 s, 2 s, 2 p, 3 s, 3 p, 3 d

Q. If we consider no mixing of

^{'} 2 s^{'}

^{'} 2 p^{'}

orbitals, then the bond order and magnetic nature of the diatomic molecule

C_{2}

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