alleryNH₃ shape:
ASquare planar
BLinear
CTetrahedral
DTrigonal pyramidal (sp³ with 1 lone pair)
Answer & Solution
Correct answer: D. Trigonal pyramidal (sp³ with 1 lone pair)
NH₃: sp³ N with 3 bond pairs + 1 lone pair.
Geometry = trigonal pyramidal.
Bond angle ≈ 107° (slightly less than tetrahedral 109.5° due to LP-BP repulsion).
Lone pair makes N a Lewis base/nucleophile.
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