According to VSEPR theory, the geometry of CH₄ around the carbon atom is:
ATetrahedral
BSquare planar
CTrigonal bipyramidal
DOctahedral
Answer & Solution
Correct answer: A. Tetrahedral
1. Carbon in CH₄ has four bond pairs and zero lone pairs.
2. Four equivalent regions of electron density → tetrahedral arrangement.
3. Bond angle is 109.5°.
4. Square planar (90° + 90°) is what 4 bond pairs + 2 lone pairs would give.
_Source: syllabus Chem Ch 4 §4.3 VSEPR Theory_
Keep practising Chemical Thermodynamics
Browse all Chemical Thermodynamics questions for AP Intermediate 1st Year, or explore more Chemistry topics.
Related questions
A process whose enthalpy and entropy changes share the same arithmetic sign will show:At minus 10.00 degrees Celsius the entropy change of the universe for melting is negative,Melting is described as spontaneous at 10.00 degrees Celsius because at that temperature:K_sp of a sparingly soluble salt AB at 25 °C is 4 × 10⁻¹⁰. Molar solubility s of AB is:A buffer solution is most resistant to pH change when:K_w (ionic product of water at 25 °C) is:The pH of a 0.01 M HCl solution is:For an exothermic reaction at equilibrium, raising the temperature: