Question

1.Place in increasing dipole moment

I - HI

II- HF

III- - HCL

2.Determine electron geometry and molecular geometry and polarity of NH3

3.Determine the electron geometry and molecular of O in CH3OCH3

4.Place in decreasing order

I - CH4

II - CH3OH

III - CH3SH

5.Determine the electron geometry and molecular geometry of TeO2

6.Determine the electron geometry and molecular geometry and polarity of SCl2

7.Determine the electron geometry and molecular geometry of CO32-

Answer 1

1. The dipole moment of hydrogen halides decreases from top to bottom i.e., from HF to HI due to the decrease in the electronegativity of halogens from F to I. So, the increasing order of dipole moment is HI < HCl < HF.

2. Electron geometry = Tetrahedral

Molecular geometry = Trigonal pyramidal

Polarity: Polar

3. Electron geometry = Tetrahedral

Molecular geometry = Bent angular

Polarity: Polar

4. As the electeonegativity of O is more than S which again is more than H, the decreasing order of polarity and dipole moment is CH₃OH > CH₃SH > CH₄.

5. Electron geometry = Trigonal Planar

Molecular gometry = Bent angular

6. Electeon geometry = Tetrahedral

Molecular geometry = Bent angular

Polarity = Polar

7. Electron geometry = Trigonal Planar

Molecular geometry = Trigonal Planar

Polarity = Non polar