Answer: Tetrahedral.
- A Tetrahedral
- B Square planar
- C Trigonal planar
- D Linear
Correct answer: A. Tetrahedral
Explanation: CH<sub>4</sub> has 4 bonding pairs and no lone pairs; this gives a regular tetrahedral shape with 109.5° bond angles.
VSEPR theory predicts molecular shape from the number of bonding and lone electron pairs around the central atom.
Concept context
Understand how atoms join to form molecules. Covers ionic and covalent bonding, VSEPR theory, hybridization (sp, sp², sp³), molecular orbital theory, bond polarity, and intermolecular forces like hydrogen bonding.
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