Question

Lewis Dot Structure Shape Bond Angle instructor Polarity Initials Molecule 21. HaPO4 22. H2SO4 23. HNO2 24. N2O2 25. N20 Exceptions to the octet rule: 26. BeF2 BCla 120

Answer 1

21. H₃PO₄ : It has tetrahedral shape, bond angle ~109.5 , it is polar molecule.

(bond is less than 109.5 , between -P=O and -P-OH )

22. H₂SO₄ : It has tetrahedral shape, bond angle ~109.5 , it is polar molecule.

(bond is less than 109.5 , between -S=O and -S-OH ; between -S=O and -S=O )

23. HNO₂ : It has angular shape, bond angle <120 (~115) , it is polar molecule.

24. N₂O₂ : It has angular shape, bond angle <120 , it is a polar molecule.  

(non-linearity makes it Polar: though polarity is lesser)

25. N₂O :   It has linear shape, bond angle ~180 , it is a polar molecule.

( polarity is lesser)

26. BeF₂ It has linear shape, bond angle 180 , it is Non-polar molecule.

(opposite side polar bond cancels  each other , thus non-polar)

27. BCl₃ : It has trigonal planar shape, bond angle 120 , it is a Non-polar molecule.

(directional polar bond vectors cancels  each other , thus non-polar)

lewis dot structure 220 21. H-o- o=2 LÖrI Pogs oH OH 230 H-8-N = H 250 26. : - Be-F N = 66 OR :Ň NO: 270 : . Boci ce pri