The geometry of ammonia molecule can be best described as : — Chemical Bonding Chemistry Question

💡 Solution & Explanation

Step 1: Recall the VSEPR description of NH3. The Nitrogen atom undergoes sp3 hybridization, having 4 electron domains (3 bond pairs and 1 lone pair) arranged in a tetrahedral geometry. Step 2: The Nitrogen atom is positioned near the center of this tetrahedral arrangement of electron domains. Step 3: The three hydrogen atoms occupy three vertices of this tetrahedron, with the fourth vertex containing the lone pair. Therefore, the geometry is best described with Nitrogen at the center, matching option (b).