Question

9. Dipole moment of water is 1.84 D which indicates that water molecule is
a) , linear symmetrical
b) linear non-symmetrical
c) nonlinear symmetrical, d) nonlinear nonsymmetrical​

Answer 1

Given info : Dipole moment of water is 1.84 D. Which indicates that water molecules is ...

Solution : if dipole moment of any compound is zero , then shape of compound will be symmetrical otherwise non symmetrical.

In other words, if any compound contains lone pairs then it will be non symmetrical.

Here dipole moment of water is 1.84D so it is clear that water molecule is not symmetrical. But it is linear or not, it will check with help of VSEPR theory.

As we know, molecular formula of water is H₂O

bond pairs = 2

Lone pairs = (6 + 2 - 2 × 2)/2 = 2

Here two bp and two lp so the shape of water molecule is angular not linear.

Therefore water molecules is nonlinear non symmetrical i.e., option (d)