CH₄ has 4 bonded H and no lone pairs on C. Its geometry and bond angle are

Answer: Tetrahedral, 109.5° 4 bonded electron pairs arrange tetrahedrally with 109.5° bond angles.

BF3 has a molecular geometry that is:

Answer: Trigonal planar with 120° bond angles Boron has 3 bonded atoms and no lone pairs, giving trigonal planar geometry with 120° angles.

A central atom with 2 bonded atoms and no lone pairs has what geometry?

Answer: Linear (e.g., CO₂) 2 electron domains arrange linearly at 180°. Examples: CO₂, BeCl₂.

AP Chemistry · Topic 2.7

VSEPR and Bond Hybridization Practice

Part of Compound Structure and Properties.(SAP-4.C)

Practice questions

Want a predicted score for the whole AP CHEM exam? Take the 20-question diagnostic and Lumi will plan the rest.

Take diagnosticarrow_forward Practice all 2.7

Sample questions

5 of 46 — sign in to practice the rest with adaptive difficulty and mastery tracking.

Sample 1difficulty 2/5
$CH₄ has 4 bonded H and no lone pairs on C. Its geometry and bond angle are$
- A
  $Trigonal planar, 120°$
- B
  $Linear, 180°$
- C
  $Square planar, 90°$
- D
  $Tetrahedral, 109.5°$
  check_circle
Why
$4 bonded electron pairs arrange tetrahedrally with 109.5° bond angles.$
View full solution & statsarrow_forward
Sample 2difficulty 2/5
$BF3 has a molecular geometry that is:$
- A
  $Trigonal pyramidal with 107° angles$
- B
  $Trigonal planar with 120° bond angles$
  check_circle
- C
  $Tetrahedral with 109.5° angles$
- D
  $Bent with 120° angles$
Why
$Boron has 3 bonded atoms and no lone pairs, giving trigonal planar geometry with 120° angles.$
View full solution & statsarrow_forward
Sample 3difficulty 2/5
$A central atom with 2 bonded atoms and no lone pairs has what geometry?$
- A
  $Trigonal planar$
- B
  $Bent (e.g., H₂O)$
- C
  $Linear (e.g., CO₂)$
  check_circle
- D
  $Tetrahedral$
Why
$2 electron domains arrange linearly at 180°. Examples: CO₂, BeCl₂.$
View full solution & statsarrow_forward
Sample 4difficulty 2/5
$Ammonia has nitrogen bonded to three hydrogens with a single lone pair occupying the fourth electron domain.$
$The molecular geometry of NH3 is:$
- A
  $Bent$
- B
  $Trigonal planar$
- C
  $Trigonal pyramidal$
  check_circle
- D
  $Tetrahedral$
Why
$With one lone pair and three bonded H atoms, NH3 has tetrahedral electron geometry but trigonal pyramidal molecular shape.$
View full solution & statsarrow_forward
Sample 5difficulty 2/5
$Water is polar because$
- A
  $It has polar O-H bonds AND a bent geometry, so dipoles do not cancel$
  check_circle
- B
  $It is symmetric$
- C
  $Oxygen is nonpolar$
- D
  $Both H-O-H bonds cancel$
Why
$Bent shape means the bond dipoles add to a net molecular dipole pointing toward the O.$
View full solution & statsarrow_forward

Predict my AP scorearrow_forward