Home › NEET UG › Chemistry › Chemical Bonding and Molecular Structure ›  In the molecular geometries shown for AB₂, AB₃, AB₄, AB₅ and AB₆ (with no lone pair on A), the central-atom bond angles are respectively:
A90°, 120°, 109.5°, 180°, 120°
B180°, 120°, 109.5°, 90/120°, 90°
C120°, 109.5°, 90°, 180°, 120°
D109.5°, 120°, 180°, 90°, 90°
Answer & Solution
Correct answer: B. 180°, 120°, 109.5°, 90/120°, 90°
Linear (AB₂) → 180°. Trigonal planar (AB₃) → 120°. Tetrahedral (AB₄) → 109.5°. Trigonal bipyramidal (AB₅) → 90° axial-equatorial / 120° equatorial-equatorial. Octahedral (AB₆) → 90°.
Related questions
Among the following, the molecule with a zero dipole moment despite polar bonds is:In a coordinate (dative) bond, the shared pair of electrons:The shape of SF₆ is:Which of the following diatomic species is paramagnetic in its ground state?Among N₂, O₂, F₂ and Ne₂, the molecule with the highest bond order is:Bond order in molecular orbital theory is defined as:A hydrogen bond is best described as the attraction between H attached to a highly electroThe maximum number of bonds an oxygen atom can normally form is: