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Standard XII
Chemistry
Linear Combination of Atomic Orbitals
34.Calculate ...
Question
34.Calculate the %p character in the orbital occupied by the lone pairs in water molecule. [Given: angle HOH = 104.5^° ; cos 104.5^° = -0.25] 1)80% 2)20% 3)70% 4)75%
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Q.
Calculate the % p-character in the orbital occupied by the lone pairs in water molecules :
[Given :
∠
H
O
H
is
104.5
∘
and cos
(
104.5
)
=
−
0.25
]
Q.
Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : The H–O–H bond angle in water molecule is
104.5
o
.
Reason R : The lone pair–lone pair repulsion of electrons is higher than the bond pair-bond pair repulsion.
Q.
The resultant dipole moment of water is 1.85 D, Calculate the bond moment of
O
H
bond (in D), bond angle in water molecule is
104
o
C. Given: cos
104
o
= -0.25 (Ignore the dipole moment due to lone pair)
Q.
In a water molecule, the bond angle of
104.5
o
around oxygen is accounted due to:
Q.
Which of the following accounts for the bond angle of
104.5
o
in water molecules?
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