Amongst the following, the linear species is:
Chemical Bonding · Class 11 · JEE Main Previous Year Question
Amongst the following, the linear species is:
- a
- b
- c
- d✓
🧠 Linear geometry: central atom has no lone pairs and 2 bond groups (sp hybridised), or 2 bonds + 3 lone pairs (also linear, e.g. ). Check each.
- : N has 2 bonds + 1 odd electron ≈ 3 groups → bent ✗
- : O central, 2 bonds + 2 LP = 4 groups → bent ✗
- : central O, 2 bonds + 1 LP = 3 groups → bent ✗
- : central N has 2 double bonds + 0 lone pair = 2 groups → linear (sp) ✓
⚡ (azide) is isoelectronic with : [N=N=N]⁻ — 2 double bonds, 0 LP on central N → strictly linear.
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